I have never seen a simple an explanation like this. All I can say is that you know exactly what are you saying like you have invented it. Well done A like and a subscription is applicable Thank you
Thank you. For these small scooter variators there is no grease supplied/required. On the larger capacity scooter variators, you will notice the basket has rubber seals and these are the kits that require grease and the grease is applied to the shaft. The instructions will always guide you.
Thanks for the great explanation. I have a Honda SH300 and particularly on cold mornings the bike shudders badly when I pull away from a stop. If I gently feed in the throttle I can work around it and after everything is hot it’s usually ok. Is the problem likely to be the variator or the clutch grabbing or even the torque converter spring? The bike is from 2017 with only 9000 Km. Thanks a lot!
Hello, I have a 2008 Kymco Vitality 50cc 2 stroke. Everything is stock. The stock roller weight is 9 grams. I have an equal mix now of 9gram and 5.5 gram rollers, spaced out equally. I also swapped the stock belt for a malossi Kevlar belt. The scooter can get to 70kms/hr on flat and downhill but stays between 48 and 55 Kms/hr up hills. My issue is if i give the scooter too much throttle from takeoff it bogs. Is this a roller weight issue? I tried 4.7 grams and it seemed to take off better but the rpm’s sounded too high and the top end suffered immensely . I also bought a mix of malossi clutch springs, red, green and blue (I haven’t put them in yet) . I will also be upgrading the muffler soon to a malossi performance exhaust. I’m just confused to why it bogs if i give too much throttle from the start…. I checked my spark plug after riding for a while and it was a chocolate brown so I don’t think it’s running too rich or too lean. I appreciate any advice. It’s a pretty heavy scooter so I’m thinking lighter rollers may not work too well in it.
Go back to the start prior to any mods when there were no issues, now fit 1 part at a time, test the change before moving to the next part change so you can isolate the issue.
All of the Chinese GY6 are the same, the transmission is different in terms of the case length which is usually determined by the wheel size. Check the engine prefix, 152*** is 125cc 157*** is 150cc.
Have a Kymco agility 50, wondering if I can take the big ugly standard air box off and replace it with a pod filter? If so can I simply just bolt the pod filter on to the carby, or would I need to adjust the jets in the carby also.. would it make any difference to acceleration? Or am I wasting my time. Thanks
You are wasting your time. Just so you can learn- give it a go but it will let way too much air in and the bike will not run properly. The Fuel and air ratio needs to be balanced. The Kymco Agility is a snail but you can do engine upgrades to make it a racing snail..🤙🤙🏍
Say you couldn’t tell if the variator rollers are wearing, but you see clearly visible black, sooty wear inside the basket; is it possible to weigh the variator rollers to check for wear. (Is this an accurate way to keep an eye on wear?)
Rollers: In a perfect world, the effect will be a slightly slower acceleration. If the 13g rollers are possibly already the optimal weight for the variator, if by chance they were too light you would be missing out on some top speed. If it was me I would test and trial several different weight sets to find the best set for what you want from the machine. Fuel: If the riding situation des not change, the consumption will have no noticeable difference.
thanks for the video! I recently fell off the scooter, the reason I think why did it happen is because of rear wheel jammed and I sat on front brakes. Belt was torn apart literally in dust and part of it was in rear variator (i think its called a clutch, we call it rear variator here, sorry for confusion). Could it be a reason for jammed wheel?
Hi Wow, I hope you were not injured.. Usually when the belt explodes it would not STOP the rear wheel, because the clutch is driven by the clutch shoe activating the clutch bell and then engaging the diff gear. If this has happened do a thorough investigation in to any failed parts especially the clutch shoe, which is the driving point..⚠⚠
I have a stock 95 Zuma. Just bought it. Can i ask what are the main things i can do that improves without upgrading? Would a new air filter make a massive difference? ive bought a new one just waiting on air filter oil before fitting, Thanks. New subscriber from UK is there a stock replacement cvt kit available?
Hi Mojfilter96, thanks for joining in🙌. The Zuma is very responsive to any changes, consider an Exhaust, Carby or main jetting and transmission start with Variator. Yes there are heaps of parts for this very popular model.
@@scooterstreetau thanks for the quick reply. Is there a variator washer on these? sorry for the hassle! I had the exact same one in 98 when I was 16, and I've been looking for years and years and finally found one. 1 owner from new. Kept in a garage. Amazing condition just tops out at around 30mph which is way too slow man.
How would i get my drive belt to go all the way up the variator? I have tried to change the belt but cant seem to use the whole surface which would result in loosing top speed right?
This can be tricky to find the perfect belt as the rear pulley works against the front pulley. A slightly longer belt with smaller width, or shaft with reduced length.
In the larger capacity scooter there is application for grease. In the smaller scooter I do not use grease. I would suggest to give it a go and see what happens, you will find out immediately the result.
Hi, I have a problem with my 50cc 2 stroke scooter, where it takes off great until about 40-45 km/h when it starts to rev really high. Could it be that my drive belt is worn, or the rollers are too light? Also I noticed that the belt doesn't go all the way up on the variator pulley. My top speed is around 60-65 km/h but the scooter is revving really high.
Hey man do u have any information on a gillera storm 50cc 2 stroke if you half throttle it goes to 7k rpm and if u pull the throttle just a little bit moreit just dies. And when I come to a stop it just revs high by its self is that the rollers sticking
The Storm is a cool scooter to tune, rebranded Piaggio Typhoon but with better wheel/tyre combo. What you have described is the perfect description of a bike with an air leak. You need to check your airbox tube (which leads from the airbox to the carb), your intake manifold (from the carb to the engine) as the Piaggio engine in that bike very commonly develops cracks in these rubber parts with age, leading to exactly the problems you've described. If these are both intact, check your reed petals, if intact you may have a crank seal leak.
No we dont have. The TGB variator was already at the high performance, they were makers of many Variator for other companies and had a great product already. One of the issues was the spacing shaft had a small instep on the crank side that sat over the crankshaft and this was not a common set up, other variators used a solid shaft with out this step.
Hello, What can you comment on my problem of the variator shaft being to big for the crank. The dude that I bought it from said that he used it on the same scooter as mine (Yamaha Aerox). And the variator itself is polini and my crankshaft is stock.
@@scooterstreetau I just checked it and it says that it is supposed to go on a Yamaha aerox with 13mm crankshafts. But for some reason it does not go on mine.
hi I have a Typhoon euro 4 from 2020 all original, just there is a Touring pot and some carburetor settings it goes up to 65 / km and there I just received a Malossi MHR variator and I don't know I can put what like pebble, thank you for your answer?
The roller is trial and testing, you need to start some where (the supplied rollers in the kit) and then adjust from there. Only do one change per time and take your time👍👍
@@mohaa04 Do the rollers first and change nothing else. Do the test ride and not the change.... 2nd then you can change the spring and again, do the test ride so the change can be noticed.
Yes, this is pretty common on that engine. The torque driver (rear pulley system) on both the 50cc and 100cc Minarelli engine use a 2 pin system, which is highly prone to wearing prematurely. This causes the rear pulley to suddenly drop open (which rapidly increases the gear and drops the revs) rather than smoothly transitioning into a higher gear as it should. You need to replace the outer face of the rear pulley (torque driver) with the Malossi unit. Its a pretty easy job to do, we have another video on this exact issue and how to repair.
Hello dear friend my scooter from start until around 45 or 50 km revs very high like a plane ,if i give more gas i can reach 100 with no problem although very loud on noise that comes from the transmition,the problem firstly started when i realised that going up on a hill i had to give full throttle to make it happen with low acceleration but i had no loud noise on transmition then,i replaced rollers and sliders on variator,clutch bell and cvt belt ,the clutch is almost new,the variator has around 35.000 kilometers
Without knowing what noise I guess you shoud check the diff gears and look for wear in the Transmission, You need to discover the exact location of cause.
Yes, we always place the roller with the closed end or capped end of the roller toward the clockwise direction of the variator. Due to the variator spinning anti clockwise using this method keeps roller inner and outer together. Good quality rollers are glued and it will not be super important but a good practise to apply when setting up the variator.
hello i have a speedfight 3 and polini vario with 5.6g rolls and blue torque spring with tecnigas qtre exhaust and 60 main jet. but the problem is that it wont rev past 7.500rpm's when i give it full gas from stop it revs to 8000rpms but then drops back to 7.5k. do you know what would be the problem? thanks
@@pomaranc3647 You may have several restrictions, the transmission, in the carby and always the factory exhaust. Check all of these areas thoroughly and upgrade the exhaust when you're ready.
Is the "inner brass thrust component" that's mentioned at 7:03 replaceable? My variator sleeve/bush has slight side to side play. I don't know if I should buy a new sleeve/bush or replace the "inner brass thrust component" if that's even possible. Thanks for the awesome video!
The brass housing itself is not available but you can replace the complete basket, Malossi has it as a spare part. Search for the variator part number on Malossi website, select SPARE PARTS and you will see the MOVABLE HALF-PULLEY FOR MULTIVAR 😁
My scooter is having trouble gearing down while driving uphil, im getting really low rpm and it wont gear dowm, the only way to gear down is to stop it then take off again, any ideas what is happening?
Sounds like a classic torque driver failure, or torque spring failure. The Minarelli engine is particularly bad for it, but it can happen to other models too. I would recommend removing your rear pulley and inspecting the spring, as well as removing the sleeve to inspect the pins and slots of the torque driver too.
Hey i have a bws 2009 i just put a 70cc malossi cast iron and i wonder what kind of variator and what weight i should put in it if i want good acceleration and 80-90kmh considering i already have 15-50 gears
How fast it the current top speed? I would try for a Malossi variator, with a range of rollers. They must be tuned to the individual bike as well as the rider weight. We sell the variator as well as Polini roller tuning kits on our website
First number (larger number) is the diameter (outer rounded edge). Followed by the width (flat surface measurement). Example 19mm Diameter X 15mm Wide.
G-day, Generally how often does one check/service the variator components (slides). Also Dr Pulley has slides (vs rollers). Your thoughts on using slides Rollers and what combining the two in a variator basket would do. A vid would be awesome Thanks guys sometimes your visa are over my head and you guys do a decent job of talking techie and still talk to beginners. Thanks for the assist.
Howdy, it is when the engine reaches the 6000km mark you will notice signs of wear so at intervals of 3000kms is a good time to check. Rollers and sliders both slide, Dr P has a great system in their shape and they all designs wear and which ever design you choose maintenance is the key. Dont mix them, it is unnecessary. Thanks for wathcing and the great Question🙌
The factory weights will probably produce the best top speed. If you go heavier ( which I would advise you try) you may notice a drop in the acceleration from start. Fitting clutch springs will enhance the acceleration and trial of heavier/lighter rollers will allow you to find a best performance result.
Hey! I have a 110cc honda Aviator 4stroke, I so very much want a different weight roller set than stock. There's nothing available here in India :( Could you please help me out?
We don't have that model in Australia, I'm not sure what size rollers it takes. I would recommend removing one to measure and weigh, there's a very high likelihood it uses a common size which you'll be able to get online.
Hi! I have keeway ry6 (basically same as yamaha jog) i have problem with speed. My top speed is just 73kmh (45mph). My setup is ported 70cc airsal t6, tecnigas next r, 19mm carb, stage6 variator with 5g rollers, 50% contra spring and stiffer clutch springs. Belt is brand new and carb is working well. How could i increse my top speed?
Have you checked for limiters? Check the CDI and the intake - reed valve. What air box system are you running? Is the belt progressing to the outer limit of the variator? Do a Pen test,. The rollers could moved up to 6 gram or even heavier. A higher end exhaust will help. If all works out consider a gear kit to transfer the power into higher top speed.
Usually only at transmission service intervals, they will get a little dusty from roller, guide and belt debris caused by wearing. Best just top wipe the out, or clean with brake cleaner. Definitely no grease whatsoever in the Variator, unless you have a MHR Team performance Variator which requires it (these variators have rubber seals at both ends of the bush shaft in the basket to keep the grease captured).
Never.. The smaller variator should run as a dry unit. Graphite powder has been used in the past but I prefer a clean transmission free from substances. The larger CC variators are an enclosed unit when assembled and they do have a very light grease that remains inside the unit and will not leak to the belt.
Hey I have a piaggio 2 stroke but I want to accelerate faster, everything is unrestricted. My budgets about 150 what’s the best option here without going to a 70cc?
When i rode my bike my bike kept slowing down drastically and sound horrible i opened my cvt cover and my cooling fan was shredded to bits do you know what the problem is?
The fan may have damaged such as crack and flew apart. The Crank nut may have come loose? There may be another mechanical part in the CVT that has caused this. Regular maintenance is the best, but not always prevented.
@@scooterstreetau i took everything out put it all back togetyer and it sounds fine but whenever i ride it it will only reach 10-20mph and make a horrible motor like noise then decrease in speed
@@twiggy17 You need to reinstall correctly and replace any damaged parts. Keep working on it and also look further because the fan may be the result of another parts of the engine.
Hello sir!I just want to ask. Which is better in terms of variator between a polini, malossi or stage 6? I do have a mk2 stage 6 70cc cylinder lc and a exhaust Yasuni R.Thank you sir in advance.😀
A performance Variator generally gives exactly that, better performance. In some models of scooter the Variator can increase the acceleration, increase the delivery of power evenly through the rev rage and in some cases they will increase top speed. Certain Race (Over Range) Variators have larger dimensions then that of the original and add an increase at both ends of the speed line.
I have an issue where my 50cc 2 stroke accelerates normally up to about 25-30 kmph, then accelerates extremely slowly to 50-55kmph where is maxes out (has a limiter at 50kmph by law). If there is any kind of incline on the surface I'm driving it won't even get there. Just feels like there's another person sitting on the back
@@scooterstreetau the roller weights are covered in rubber or plastic, and the sliders I guess are plastic. a friends scooter shredded the belt, when I replaced it I noticed the roller weights were just metallic (no soft coating left) , maybe that's why it rattles sometimes
@@scooterstreetau thanks this video helped by showing what all parts do and how they wear. I learned from videos that the roller weights should not be bare metal. lol
You're a good car mechanic who is learning about scooters👌. No not necessarily, best to try and see what effect it has. Lighter reduce the engine load easier rpm, too light and the top gearing won't be met. Too heavy may impede the acceleration but can give higher top if not meeting the top gear potential.
@@ivlark1 Most likley there is an issue with engine or transmission. You will discover when you start to open up the cover. In a perfect scoot you would lighten the rollers by 10% to start and fit a higher tension set of clucth springs to the clutch shoe.
You have a huge mismatch there between the cylinder and exhaust. That C16 starts making power where that cylinder kit tops out. If you installed a Yasuni R or Z you'd have a much better power delivery.
@@scooterstreetau It previously had a Technigas that was awful, but it still topped out at 50mph, somethings restricting it, either that or euro4 are just slow
My keeway rx8 has a problem. When it's cold it takes off like a rocket but when It warms up it doesn't anymore accelerate as well.if you have a answer I'm very grateful if not then I'm sorry for wasting your time
Cool, 2007 C3 got it new, There were a # of recalls on it " rode " it in to dealership ROCKRIVER YAMAHA Jefferson wi. and had to pick it up in PARTS. Not all the parts were there.Fat a$$ old guy and I Know it. I ride year round, late night so a lot of animals out there. I have pol. speed var. dr. pulley weights.Small air cleaner, Mod exhaust. Looking for anything to help keep going. "guides" are all the same? or can get a bag of them? somewhere? Thank you
Hey man - well produced video, but you didn't actually tell us how to service the variator! You only explained how it works and which parts should be replaced (by your workshop). What about directional orientation of the fitting of certain roller weights? What about any cleaning or lubrication (if any) required? The part you refer to as the bush, is technically in engineering terms and OEM parts manuals referred to as a boss or collar; the "bush" is in fact the phosphor bronze bearing surface, press-fitted into the hub of the drive pulley / variator sliding half, or "inner brass thrust component" as you called it. You can release a part 2, educating your viewers more correctly. Twist and go 🙂
Thank you TVW. We love to get the comments and will always reply, very glad you like the production of the Vid, looks like we need to work on the content for you. You may have missed some info, so I'll help out, watch from 1:20 and at 3:00 the components replaced when servicing the variator. In understanding the function of a part you can then better understand how to look after and keep the best function. The direction of rollers placement for each manufacturer is different, If you have a Malossi Variator just follow the instructions in the manual. Overall we have the closed end of the roller if produced in that manner facing opposite the direction of travel. Cleaning is a great idea, always remove the dust and particles that could wear or inhibit the correct function. Many of the workshop manuals have different names for the same part, such as HUB, DRIVE BOSS, COLLAR, BUSH and SPACER. We don't mind what you prefer to call it, we understand what you mean👍You refer to a couple of names for the DRVE PULLEY, VARIATOR SLIDING HALF, DRIVE FACE, VARIATOR BASKET, MOVABLE DRIVE FACE COMP. If you need some help with something in particular just send us an email, will be more than happy to help with your variator😊😊
My atv moped is making this knocking sound while at idle, i opened the variator and looked at the weight rollers, and put them back together exactly as it was, but when i started it up, it started knocking at idle but only at idle, how can i fix this?
You need to retrace your steps. If it wasn't making the noise prior, it stands to reason the cause is something you have done when you have removed the variator. Does it Knock after riding? Did you put the parts back together in the correct manner?
I have never seen a simple an explanation like this.
All I can say is that you know exactly what are you saying like you have invented it.
Well done
A like and a subscription is applicable
Thank you
That is a very nice comment, thank you for acknowledging our efforts🙏
The clearest, most articulate variator explanation I've seen. Thank you for posting!
Thank you, we appreciate your kind comment and the views👍
couldn't agree more, spot on and to also go through a worn down one for comparison what can happen and prob will if you are lazy with the service ^^
@@joakimcarlsson90 Thank you, well said👍
Very well explained, I actually understand my Nmax a little more now.
Alan, Thanks for watching and glad it was of value for you👍
The best scooter tuning channel on youtube! Great job🔥
Hey, we appreciate the love, thank you🙌
Good stuff. Will be doing a full rebuild of my SR50 later in year.
Awesome🏍🏍We look forward to an update🤙 and thanks for supporting our Channel.
Good essentials information regarding variator pulley, which is important for me
Thanks a lot Sir,..
You are welcome and thanks for wacthing our Channel🙌
Great show, but where do you put the grease that is supplied?
Thank you. For these small scooter variators there is no grease supplied/required. On the larger capacity scooter variators, you will notice the basket has rubber seals and these are the kits that require grease and the grease is applied to the shaft. The instructions will always guide you.
Thanks for the great explanation. I have a Honda SH300 and particularly on cold mornings the bike shudders badly when I pull away from a stop. If I gently feed in the throttle I can work around it and after everything is hot it’s usually ok. Is the problem likely to be the variator or the clutch grabbing or even the torque converter spring? The bike is from 2017 with only 9000 Km. Thanks a lot!
Clutch shudder is caused by the clutch shoe contact pad skipping. The transmission should be serviced at regular intervals.
Nicely explained
But if I want to modify for speed and pickup what modifications I have to do
Thank you. Try 5-10% lighter in the rollers and increase the clutch springs tension. Test mutiple roller weights.
@@scooterstreetaushould i change my contra springs too?
Not at first, make only small changes and test before adding another part or change to the system.@@ineedmorecarrots6063
Hello, I have a 2008 Kymco Vitality 50cc 2 stroke. Everything is stock. The stock roller weight is 9 grams. I have an equal mix now of 9gram and 5.5 gram rollers, spaced out equally. I also swapped the stock belt for a malossi Kevlar belt. The scooter can get to 70kms/hr on flat and downhill but stays between 48 and 55 Kms/hr up hills.
My issue is if i give the scooter too much throttle from takeoff it bogs. Is this a roller weight issue? I tried 4.7 grams and it seemed to take off better but the rpm’s sounded too high and the top end suffered immensely . I also bought a mix of malossi clutch springs, red, green and blue (I haven’t put them in yet) . I will also be upgrading the muffler soon to a malossi performance exhaust. I’m just confused to why it bogs if i give too much throttle from the start…. I checked my spark plug after riding for a while and it was a chocolate brown so I don’t think it’s running too rich or too lean. I appreciate any advice. It’s a pretty heavy scooter so I’m thinking lighter rollers may not work too well in it.
Go back to the start prior to any mods when there were no issues, now fit 1 part at a time, test the change before moving to the next part change so you can isolate the issue.
How do I go about getting the right parts for my 150cc gy6 engine if it is a chineese version & it is hard to find my model parts ?
All of the Chinese GY6 are the same, the transmission is different in terms of the case length which is usually determined by the wheel size. Check the engine prefix, 152*** is 125cc 157*** is 150cc.
I have a 97 Yamaha razz I'm Workin on any tips on improving performance and speed and if I was to do an engine swap what is the best to use
I am not sure of the engine swap but try an exhaust and carby adjustments, just ride it for fun and giggles as they are a classic.
Have a Kymco agility 50, wondering if I can take the big ugly standard air box off and replace it with a pod filter? If so can I simply just bolt the pod filter on to the carby, or would I need to adjust the jets in the carby also.. would it make any difference to acceleration? Or am I wasting my time. Thanks
You are wasting your time. Just so you can learn- give it a go but it will let way too much air in and the bike will not run properly. The Fuel and air ratio needs to be balanced. The Kymco Agility is a snail but you can do engine upgrades to make it a racing snail..🤙🤙🏍
Say you couldn’t tell if the variator rollers are wearing, but you see clearly visible black, sooty wear inside the basket; is it possible to weigh the variator rollers to check for wear. (Is this an accurate way to keep an eye on wear?)
You can see the wear on the rollers, it is very clear to see, so don't worry too much as it will be very obvious.
If my scooter have 13g stock roller, can I change to 14g? What is the effect of it? Does my fuel consumption increase?
Rollers: In a perfect world, the effect will be a slightly slower acceleration. If the 13g rollers are possibly already the optimal weight for the variator, if by chance they were too light you would be missing out on some top speed. If it was me I would test and trial several different weight sets to find the best set for what you want from the machine.
Fuel: If the riding situation des not change, the consumption will have no noticeable difference.
thanks for the video! I recently fell off the scooter, the reason I think why did it happen is because of rear wheel jammed and I sat on front brakes. Belt was torn apart literally in dust and part of it was in rear variator (i think its called a clutch, we call it rear variator here, sorry for confusion). Could it be a reason for jammed wheel?
Hi Wow, I hope you were not injured..
Usually when the belt explodes it would not STOP the rear wheel, because the clutch is driven by the clutch shoe activating the clutch bell and then engaging the diff gear. If this has happened do a thorough investigation in to any failed parts especially the clutch shoe, which is the driving point..⚠⚠
@@scooterstreetau yes sir, i changed both rear and front brake shoes, they were totally worn out. I'm fine thanks for your support and concern!
@@cox_stuff4530 Also check the CLUTCH SHOE... 🙌 Good to hear.
I have a stock 95 Zuma. Just bought it. Can i ask what are the main things i can do that improves without upgrading? Would a new air filter make a massive difference? ive bought a new one just waiting on air filter oil before fitting, Thanks. New subscriber from UK is there a stock replacement cvt kit available?
Hi Mojfilter96, thanks for joining in🙌.
The Zuma is very responsive to any changes, consider an Exhaust, Carby or main jetting and transmission start with Variator. Yes there are heaps of parts for this very popular model.
@@scooterstreetau thanks for the quick reply. Is there a variator washer on these? sorry for the hassle! I had the exact same one in 98 when I was 16, and I've been looking for years and years and finally found one. 1 owner from new. Kept in a garage. Amazing condition just tops out at around 30mph which is way too slow man.
@@mojofilter96I don't believe so but you will need to check! the speed sounds normal, so unleash the beast..
How would i get my drive belt to go all the way up the variator? I have tried to change the belt but cant seem to use the whole surface which would result in loosing top speed right?
This can be tricky to find the perfect belt as the rear pulley works against the front pulley. A slightly longer belt with smaller width, or shaft with reduced length.
@ Thank you very much
My bergman 400 has to rev to 4000rpm to get going clutch shoes worn out will that fix the problem
You need to look at the clutch not the variator.
Thanks I ordered a new clutch just wondering if it would fix the problem
@@JeffHahn-d2b Dont order anything until you inspect and find the issue. If you order another clutch go for an adjustable clutch.
Too late I took it apart 2 weeks ago and almost no clutch pads left so I ordered a 5 pad instead of the 3 hope it works
@@JeffHahn-d2b Confusing as your asking about the variator?? Good luck I hope it works out.
Should we apply grease on the variator rollers? Can u tell me many people have a mixed opinion
In the larger capacity scooter there is application for grease. In the smaller scooter I do not use grease.
I would suggest to give it a go and see what happens, you will find out immediately the result.
@@scooterstreetau thank u bro
😎 does it matter where the piston is in cylinder when replaced belt ie timing mark
No.
Hi, I have a problem with my 50cc 2 stroke scooter, where it takes off great until about 40-45 km/h when it starts to rev really high. Could it be that my drive belt is worn, or the rollers are too light? Also I noticed that the belt doesn't go all the way up on the variator pulley. My top speed is around 60-65 km/h but the scooter is revving really high.
Yes Ok, check the transmission, what is the roller weight and check the belt against the measurements for the factory belt..
Thank you. It's the rollers!
Did I miss the rest of this conversation?
Hey man do u have any information on a gillera storm 50cc 2 stroke if you half throttle it goes to 7k rpm and if u pull the throttle just a little bit moreit just dies. And when I come to a stop it just revs high by its self is that the rollers sticking
The Storm is a cool scooter to tune, rebranded Piaggio Typhoon but with better wheel/tyre combo. What you have described is the perfect description of a bike with an air leak. You need to check your airbox tube (which leads from the airbox to the carb), your intake manifold (from the carb to the engine) as the Piaggio engine in that bike very commonly develops cracks in these rubber parts with age, leading to exactly the problems you've described. If these are both intact, check your reed petals, if intact you may have a crank seal leak.
Do yous have performance variator that will fit 2015 tgb bullet 50?
No we dont have. The TGB variator was already at the high performance, they were makers of many Variator for other companies and had a great product already. One of the issues was the spacing shaft had a small instep on the crank side that sat over the crankshaft and this was not a common set up, other variators used a solid shaft with out this step.
Hello, What can you comment on my problem of the variator shaft being to big for the crank. The dude that I bought it from said that he used it on the same scooter as mine (Yamaha Aerox). And the variator itself is polini and my crankshaft is stock.
Check the Polini variator Part number for its compatibility for your Model. The Yam Aerox Variator shaft dimension is: 20 x 13 x 37+-mm
@@scooterstreetau Thank you for your reply, I'll try it. Thanks
@@scooterstreetau I just checked it and it says that it is supposed to go on a Yamaha aerox with 13mm crankshafts. But for some reason it does not go on mine.
@@naurioxx2409 Let us know how you go..
@@naurioxx2409 Take a measurement, it maybe the wrong part or worn 🤷♂
hi I have a Typhoon euro 4 from 2020 all original, just there is a Touring pot and some carburetor settings it goes up to 65 / km and there I just received a Malossi MHR variator and I don't know I can put what like pebble, thank you for your answer?
The roller is trial and testing, you need to start some where (the supplied rollers in the kit) and then adjust from there. Only do one change per time and take your time👍👍
@@scooterstreetau ok I think I'm going to put 6 gram rollers and put the purple spring that provided me with the Malossi kit
@@mohaa04 Do the rollers first and change nothing else. Do the test ride and not the change.... 2nd then you can change the spring and again, do the test ride so the change can be noticed.
@@scooterstreetau ok, i will thank you
Hi. Got a yamaha yw100 and it seems to jump to a higher gearing when coasting at low speeds?
Yes, this is pretty common on that engine. The torque driver (rear pulley system) on both the 50cc and 100cc Minarelli engine use a 2 pin system, which is highly prone to wearing prematurely. This causes the rear pulley to suddenly drop open (which rapidly increases the gear and drops the revs) rather than smoothly transitioning into a higher gear as it should. You need to replace the outer face of the rear pulley (torque driver) with the Malossi unit. Its a pretty easy job to do, we have another video on this exact issue and how to repair.
Hello dear friend my scooter from start until around 45 or 50 km revs very high like a plane ,if i give more gas i can reach 100 with no problem although very loud on noise that comes from the transmition,the problem firstly started when i realised that going up on a hill i had to give full throttle to make it happen with low acceleration but i had no loud noise on transmition then,i replaced rollers and sliders on variator,clutch bell and cvt belt ,the clutch is almost new,the variator has around 35.000 kilometers
Without knowing what noise I guess you shoud check the diff gears and look for wear in the Transmission, You need to discover the exact location of cause.
hi is there a certain way to install the rollers. i was told the have to be installed a certain way
Yes, we always place the roller with the closed end or capped end of the roller toward the clockwise direction of the variator. Due to the variator spinning anti clockwise using this method keeps roller inner and outer together. Good quality rollers are glued and it will not be super important but a good practise to apply when setting up the variator.
@@scooterstreetau thank you for replying ! This will help
@@ram457moreno 👍👍
hello i have a speedfight 3 and polini vario with 5.6g rolls and blue torque spring with tecnigas qtre exhaust and 60 main jet. but the problem is that it wont rev past 7.500rpm's when i give it full gas from stop it revs to 8000rpms but then drops back to 7.5k. do you know what would be the problem? thanks
Without knowing the scooters history, hard to know. It my have an electric restrictor, look in the Peug forums for details on this.
@@scooterstreetau i put in a doppler derestricted cdi and it derestricted the revs but it still doesnt rev high enough
@@pomaranc3647 You may have several restrictions, the transmission, in the carby and always the factory exhaust. Check all of these areas thoroughly and upgrade the exhaust when you're ready.
Is the "inner brass thrust component" that's mentioned at 7:03 replaceable? My variator sleeve/bush has slight side to side play. I don't know if I should buy a new sleeve/bush or replace the "inner brass thrust component" if that's even possible. Thanks for the awesome video!
The brass housing itself is not available but you can replace the complete basket, Malossi has it as a spare part. Search for the variator part number on Malossi website, select SPARE PARTS and you will see the MOVABLE HALF-PULLEY FOR MULTIVAR 😁
@@scooterstreetau Thank you so much!
The bronze bush. Is 3 bucks for a Chinese 50cc scooter. Bill
@@williamhaskellhaskell3162 Thank you; I think you can teach the channel some about correct terminology 🙂
Hey! I have aprilia sr 50 2020, with a giannelli sport exhaust do you recommend oversize variator or sport variator from like stage 6 or malossi?
Sport Variator for this set up. Switch to an Oversize when you upgrade the cylinder.
@@scooterstreetau Ty! That's what I thought too!
@@jaakkotoivanen3437 😎👍
My scooter is having trouble gearing down while driving uphil, im getting really low rpm and it wont gear dowm, the only way to gear down is to stop it then take off again, any ideas what is happening?
Sounds like a classic torque driver failure, or torque spring failure. The Minarelli engine is particularly bad for it, but it can happen to other models too. I would recommend removing your rear pulley and inspecting the spring, as well as removing the sleeve to inspect the pins and slots of the torque driver too.
Hey i have a bws 2009 i just put a 70cc malossi cast iron and i wonder what kind of variator and what weight i should put in it if i want good acceleration and 80-90kmh considering i already have 15-50 gears
And i have a doppler clutch and also wonder whats the difference between tight and not tight spring
How fast it the current top speed? I would try for a Malossi variator, with a range of rollers. They must be tuned to the individual bike as well as the rider weight. We sell the variator as well as Polini roller tuning kits on our website
@@scooterstreetau ok thank you
@@hamalou161 Tight spring tension will delay the take off. Low tension will engage the clutch early at low RPM.
How do I measure these rollers with a caliper? Top to bottom or side to side?
First number (larger number) is the diameter (outer rounded edge).
Followed by the width (flat surface measurement).
Example 19mm Diameter X 15mm Wide.
G-day, Generally how often does one check/service the variator components (slides).
Also Dr Pulley has slides (vs rollers). Your thoughts on using slides Rollers and what combining the two in a variator basket would do. A vid would be awesome
Thanks guys sometimes your visa are over my head and you guys do a decent job of talking techie and still talk to beginners. Thanks for the assist.
Howdy, it is when the engine reaches the 6000km mark you will notice signs of wear so at intervals of 3000kms is a good time to check. Rollers and sliders both slide, Dr P has a great system in their shape and they all designs wear and which ever design you choose maintenance is the key. Dont mix them, it is unnecessary. Thanks for wathcing and the great Question🙌
@@scooterstreetau Thank you so much. Y'all ROCK!
Hi, I have a gillera runnner sp 50 2011 what roller weights should I put in it for good max speeds?
The factory weights will probably produce the best top speed. If you go heavier ( which I would advise you try) you may notice a drop in the acceleration from start. Fitting clutch springs will enhance the acceleration and trial of heavier/lighter rollers will allow you to find a best performance result.
@@scooterstreetau thanks, are you planning on uploading anytime soon?
@@scooterstreetau thanks, are you planning on uploading anytime soon?
@@albertsvanags2497We are planning on making some more but struggling to find the time ATM... We do plan to continue producing..
@@albertsvanags2497 Next month..
Hey!
I have a 110cc honda Aviator 4stroke, I so very much want a different weight roller set than stock.
There's nothing available here in India :(
Could you please help me out?
We don't have that model in Australia, I'm not sure what size rollers it takes. I would recommend removing one to measure and weigh, there's a very high likelihood it uses a common size which you'll be able to get online.
@@scooterstreetau yes, that's just what I'm thinking, will update :)
@@RamSharma-90_64 ok.
Hi!
I have keeway ry6 (basically same as yamaha jog) i have problem with speed. My top speed is just 73kmh (45mph).
My setup is ported 70cc airsal t6, tecnigas next r, 19mm carb, stage6 variator with 5g rollers, 50% contra spring and stiffer clutch springs. Belt is brand new and carb is working well. How could i increse my top speed?
Have you checked for limiters? Check the CDI and the intake - reed valve.
What air box system are you running?
Is the belt progressing to the outer limit of the variator? Do a Pen test,.
The rollers could moved up to 6 gram or even heavier.
A higher end exhaust will help. If all works out consider a gear kit to transfer the power into higher top speed.
Well Explained. 🎉 🎉🎉 teacher sir great 👍
Thanks so much 🙌 and big welcome to our Channel.
Does variator needs regular cleaning ? and what is best cleaner if yes,im also intrested does rollers need grease ?
Usually only at transmission service intervals, they will get a little dusty from roller, guide and belt debris caused by wearing. Best just top wipe the out, or clean with brake cleaner. Definitely no grease whatsoever in the Variator, unless you have a MHR Team performance Variator which requires it (these variators have rubber seals at both ends of the bush shaft in the basket to keep the grease captured).
Can we put lube or grease on varitaor roller?
Never.. The smaller variator should run as a dry unit. Graphite powder has been used in the past but I prefer a clean transmission free from substances. The larger CC variators are an enclosed unit when assembled and they do have a very light grease that remains inside the unit and will not leak to the belt.
Hey I have a piaggio 2 stroke but I want to accelerate faster, everything is unrestricted. My budgets about 150 what’s the best option here without going to a 70cc?
Lighter rollers and tighter clutch springs, don't expect mind blowing result. It will only enhance the standard setting, 10-15%
When i rode my bike my bike kept slowing down drastically and sound horrible i opened my cvt cover and my cooling fan was shredded to bits do you know what the problem is?
The fan may have damaged such as crack and flew apart. The Crank nut may have come loose? There may be another mechanical part in the CVT that has caused this. Regular maintenance is the best, but not always prevented.
@@scooterstreetau i took everything out put it all back togetyer and it sounds fine but whenever i ride it it will only reach 10-20mph and make a horrible motor like noise then decrease in speed
@@twiggy17 You need to reinstall correctly and replace any damaged parts. Keep working on it and also look further because the fan may be the result of another parts of the engine.
@@scooterstreetau alright cheers gonna do that now
@@twiggy17 Study every piece and ensure rollers are inserted correctly and ramp plate.
Tip of the hat on the information
Thank you🎩
Hello sir!I just want to ask.
Which is better in terms of variator between a polini, malossi or stage 6? I do have a mk2 stage 6 70cc cylinder lc and a exhaust Yasuni R.Thank you sir in advance.😀
Which engine? Any of the ones that you list are good. The Malossi Team 2 is great but in some models the Electric start will no longer operate.
It's a 70cc mk2 stage 6 sir.
@@jamilcarmelo2945 Which engine Piaggio/Yamaha/Honda? The Malossi Team 2 is a variator..
Oh my bad. Its a Yamaha sir.
Anyways,Thank you sir for replying.🙂
Какой вариатор лутшие паставить на sr50r. 2т.карбюратор.и где можно купить запчасти?
Мы добились большого успеха с вариатором Malossi MHR. Какая страна?
@@scooterstreetau Эстония.
@@serzikpetrov9391 www.malossistore.com/en/ee
en.50factory.com/content/1752-pieces-detachees-pour-scooter
www.racing-planet.com/scooter-moped-parts-sh-1.html?sessID=18aaf44a63e705ce335b9924d17beef0
hey what are the benefits of a better variator
A performance Variator generally gives exactly that, better performance. In some models of scooter the Variator can increase the acceleration, increase the delivery of power evenly through the rev rage and in some cases they will increase top speed. Certain Race (Over Range) Variators have larger dimensions then that of the original and add an increase at both ends of the speed line.
Скажи какой вариатор лутшие паставить на sr50r. 2т.карбюратор.и где заказать запчасти?
I have an issue where my 50cc 2 stroke accelerates normally up to about 25-30 kmph, then accelerates extremely slowly to 50-55kmph where is maxes out (has a limiter at 50kmph by law). If there is any kind of incline on the surface I'm driving it won't even get there. Just feels like there's another person sitting on the back
Find the history of the scooter and have a Mech. check out the transmission.
the variator is a very neat design but oh does it seem to wear out rubber parts quickly
The only rubber part is the belt.
@@scooterstreetau the roller weights are covered in rubber or plastic, and the sliders I guess are plastic. a friends scooter shredded the belt, when I replaced it I noticed the roller weights were just metallic (no soft coating left) , maybe that's why it rattles sometimes
@@farerse Oh wow, it needs to be maintanined more often, check these parts every 3K. The Plastic parts are sacrificial so the metal doesn't wear.👍👍
@@scooterstreetau thanks this video helped by showing what all parts do and how they wear. I learned from videos that the roller weights should not be bare metal. lol
@@farerse We are so happy to have you watching our vidoes and also make your comments, THANKYOU👍👍
👍
I’m a stupid car mechanic.. heavier weights give you quicker acceleration?
You're a good car mechanic who is learning about scooters👌.
No not necessarily, best to try and see what effect it has. Lighter reduce the engine load easier rpm, too light and the top gearing won't be met. Too heavy may impede the acceleration but can give higher top if not meeting the top gear potential.
@@scooterstreetau thanks for replying. I have a 125cc .. it’s dog slow on the low end. What should I use?
@@ivlark1 Most likley there is an issue with engine or transmission. You will discover when you start to open up the cover.
In a perfect scoot you would lighten the rollers by 10% to start and fit a higher tension set of clucth springs to the clutch shoe.
I have a 2019 NRG
Malossi cast iron
YASUNI c16 carrera
Molossi filter sponge
Malossi digitronic cdi
It's still does 50mph.
You have a huge mismatch there between the cylinder and exhaust. That C16 starts making power where that cylinder kit tops out. If you installed a Yasuni R or Z you'd have a much better power delivery.
@@scooterstreetau It previously had a Technigas that was awful, but it still topped out at 50mph, somethings restricting it, either that or euro4 are just slow
@@PaulioMaldinio What model Tecnigas? We have found the E4's are incredibly punchy and powerful when they're tuned correctly.
my bike wont spin back wheel until about 5000 revs ?
Check for clutch issue.
My keeway rx8 has a problem.
When it's cold it takes off like a rocket but when It warms up it doesn't anymore accelerate as well.if you have a answer I'm very grateful if not then I'm sorry for wasting your time
Check the Auto choke and fuel system.
@@scooterstreetau will do
What's the meaning of variator?
Did you watch the video? It is the complete assembly.
@@scooterstreetau please what of the clutch working mechanism?
@@chukwumatthew393 The Clutch, this is another video.
@@scooterstreetau please teach me.
@@chukwumatthew393 Contact us at the website. www.scooterstreet.com.au/
Why would anyone choose this hokey belt-squeezing design over a standard motorcycle with gears and a chain?
Good question! Many cars have adopted this technology so there is room for debate🤔
I’m gonna link this video whenever someone says heavy rollers = more speed
🙌
Our Yamaha dealer here is complete A-HOLE sell, get money and good bye. Need parts your on own. Best place to order parts online?
What is your location ? Buying online is so easy these days. What do you need? Model name and part Description? Contact us through the website.
Cool, 2007 C3 got it new, There were a # of recalls on it " rode " it in to dealership ROCKRIVER YAMAHA Jefferson wi. and had to pick it up in PARTS. Not all the parts were there.Fat a$$ old guy and I Know it. I ride year round, late night so a lot of animals out there. I have pol. speed var. dr. pulley weights.Small air cleaner, Mod exhaust. Looking for anything to help keep going. "guides" are all the same? or can get a bag of them? somewhere?
Thank you
There are several Polini and scooter daler is the US that sell these parts, start to google and you will see, best of luck🦈@@bobgleaser7106
Hey man - well produced video, but you didn't actually tell us how to service the variator! You only explained how it works and which parts should be replaced (by your workshop).
What about directional orientation of the fitting of certain roller weights? What about any cleaning or lubrication (if any) required?
The part you refer to as the bush, is technically in engineering terms and OEM parts manuals referred to as a boss or collar; the "bush" is in fact the phosphor bronze bearing surface, press-fitted into the hub of the drive pulley / variator sliding half, or "inner brass thrust component" as you called it.
You can release a part 2, educating your viewers more correctly.
Twist and go 🙂
Thank you TVW. We love to get the comments and will always reply, very glad you like the production of the Vid, looks like we need to work on the content for you.
You may have missed some info, so I'll help out, watch from 1:20 and at 3:00 the components replaced when servicing the variator. In understanding the function of a part you can then better understand how to look after and keep the best function. The direction of rollers placement for each manufacturer is different, If you have a Malossi Variator just follow the instructions in the manual. Overall we have the closed end of the roller if produced in that manner facing opposite the direction of travel.
Cleaning is a great idea, always remove the dust and particles that could wear or inhibit the correct function.
Many of the workshop manuals have different names for the same part, such as HUB, DRIVE BOSS, COLLAR, BUSH and SPACER. We don't mind what you prefer to call it, we understand what you mean👍You refer to a couple of names for the DRVE PULLEY, VARIATOR SLIDING HALF, DRIVE FACE, VARIATOR BASKET, MOVABLE DRIVE FACE COMP.
If you need some help with something in particular just send us an email, will be more than happy to help with your variator😊😊
Wow that's the worst variator I've seen. Just of made an awful racket.
Yes the rider complained the top speed was 30KPH and he was riding for months. Service your machine guys☝
My atv moped is making this knocking sound while at idle, i opened the variator and looked at the weight rollers, and put them back together exactly as it was, but when i started it up, it started knocking at idle but only at idle, how can i fix this?
You need to retrace your steps. If it wasn't making the noise prior, it stands to reason the cause is something you have done when you have removed the variator. Does it Knock after riding? Did you put the parts back together in the correct manner?