VARIATOR CVT TUNING TIPS! HOW TO Make Your Scooter Faster!
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- เผยแพร่เมื่อ 30 ต.ค. 2017
- Here's a handful of tips on how to tune your CVT/variator!
Shifting at the right rpm is essential for getting the best acceleration and speed out of your 2 stroke or 4 stroke scooter! What does changing roller weight do? How does the contra spring stiffness affect things? Do you have to run 6 rollers? Can you mix different roller weights?
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finally found something useful regarding tuning
THANK YOU SIR
This information is really accurate according to so many misconceptions in CVT tuning.
1:48 I was so scared to see this, thankfully it's just for measuring...
I like it man. You’ve got a straight to biznaz style. I’m gonna watch more vids
Thank you sir! Straight to the point👉 just the way I like it!
Super easy and simple , you helped me a lot with this video , tank you very much !
Your stuff you do is pretty cool ,you have a great garage as well,thank you for all your fab tips & tricks...
Fantastic video, no bullshit, straight to the point. Thank you!
Good tips. I like your test belt ideal. If I might expand on your idea.... You could use contact-cement velcro strips on the adjustment, so that the belt would not have a proud(wide) edge that would interfere with sheaves (pulley) while judging length. You still aren't going anywhere with it, but it might be able to cycle a few times, as long as the rear wheel is up.
Perhaps also, you could add measured white lines for calibration.
There is one important thing when you place you rollers.
Their sides are not the same.
One side is thick, but the other side is thin.
When variator works, it rotates to the left, but the force pushes rollers to the right side.
You need to position the rollers so that the thinner side goes to the left.
I hope I helped you, this is very important and make sure you did this right.
Best regards! :)
malossi rollers dont see different.i only put them on the marked side each.
@@jenny-masterchef You have to adjust them so the thicker side is more pressurized. But if you put them wrong, your scooter won't go fast and iit will become slow. And that's why you have to pay attention on that.
Thanks dude! I'd love to see more about the effects of tuning cvt transmissions
First time to watch this video. I learned alot. And im subscribing. Thank you.
your quick tips was very very important quickest tips for us, thanks for this usefull quick video
Great video! Concise. Thank you!
Short but detailed and clear👍👍
Great tips thanks for sharing bro
*thumbs up* definitely tips worth learning
Thanks!
@@2STROKESTUFFING HEY YE ALL BITCHZ NOW TELL ME KNOW WHICH SPRING MAKE MY SCOOTA RUN FASTER 2000RPM OR HIGHER THE NUMBER LIKE 5000RPM ??? ALSO WHICH ONE IS SOFTER ?????
Awesome video! Thank you!
Helpful. Also learning from comments. Thanks.
Very good,, plain and simple tips,,,
Hi, great video, explains everything so perfectlty. I have a question to you. I just changed the rollers on my gilera ST 200 to a lighter set. Now when I ride is all good and as expected RPM is higher, but when I brake I always get tha klick-klack-klick-klack sound just before I stop. Did you experience something like this before? I already try to adjust the clutch to make springs softer, but no improvements. Thank you in advance.
I have a hammerhead gts 150 and was wondering which weight for the rollers would be best for max torque as well as the fastest top speed. Anyone have a good setup for faster speeds without losing too much torque?
Thank you sir! You a Legend
Nice video, please give more tips for tuning of cvt thanks
Hey man great video and info!.. I got a 2018 tao pony 50cc with the 80cc bbk.. my belt broke while wide open at like 56mph.. I replaced the belt without taking the variator and or the clutch off.. I just put a socket to the variator and spun it to the left and the belt went right on.. but now my 30mph to 50mph is super slow?? Do I need to reset or adjust the clutch or the variator or even the sliders or rollers??? And for some reason my exhaust is a little deeper am I stuck in low gear??
To increase pickup which kind of roller and spring should I use for it please tell me sir.it was a super tuning tips.but I confused among choosing the components.
Hey hows it going nice video its very informative, I have a few questions about the torque driver, can you help me with that ????
I'm interested in how the exhaust valves work and how to get tuned and what kind of exhaust air you need because in the background see husqvarna we or wre or cr :). I would like to tuned my motor which is husqvarna sm 125 its a supermoto like derbi senda. thank for any help
Hi man, have a 70cc stage6 scoot set up with stage6 vario 5g sliders, 1500rpm contra, tecnigas exhaust. I have recently changed my clutch to a performance clutch which comes with a contra spring slider ring and clutch spring pre set for 70cc cylinders. Runs pretty fast and smooth on flat and will easily do 100kph. However, suddenly noticed a change with uphill performance as it slowy loses power like from 50 down to 25kph and couldn't regain that power or acceleration. It runs fine uphill from a stop cruising at 50-60kph with stock clutch but not with the performance clutch and the contra slider on it. The contra spring slider ring seems to add pre load tension and with this, should i get a lighter slider/roller with it? The pre-load tension also seems to put the belt a few mm lower on the rear pulley which i know will affect takeoff performance.
Nice
Can you put a video about roller weights, spring torque and belt size combinations?
Very infromative, i just want to ask if a lighter weight bushing can affect the cvt performance?
Thank you very much for good info .What can I do for better hill climb ride .
Hi, v.good and short video you made about variators. My questions is : can roller weights affect/improve a jerky acceleration ?.I serviced my 2011 Honda PS125 with new belt, standart rollers and performance clutch. The scooter seems to be very jerky on acceleration now and low on idle speed most times engine cuts off and it feels something is dragging /braking the gears. standart roller weights are 12g. Clutch manufacturer did not specify lighter rollers so I am left with a guessing game what rollers to fit? 10g 8g or even lighter .
a tip coming from a pro in scooters with the double variators the best results they found was to adjust the the weights so that the motor pulled slightly higher rpm than the max torque that is 200 to 300 rpm sometimes only 100-150 .
+Franz Heil Thanks, I'll experiment with it on the dyno in future videos.
@@2STROKESTUFFING did you experiment
Very nice video . Please give me a tips for perfect tuning of cvt thanks
Hello..I have a 125cc gy6 scooter and I swap the stock spring clutch for a set of 2000rpm (also the 3 little springs).
Replaced the stock 16g rollers ,for 13g (18x14) sliders.
But my scooter doesn't speed over 80km/h.
Should I install 1000, or 1500rpm spring clutch instead, and lighter rollers, for better performance..?
Or the oposite. ?
You explained about it in the video but I'm new with this kind of upgrades.
Didn't get the idea.
Thanks
Hi ! Impressive video. I have a question . I have a sym hd 300 , polini variator 14g rollers and the blue hard contra, also free dna air filter . The manual says that at 8000rpm max h.power. the rpm has increased from before , and 0-100 very fast but then drop , and the max speed comes vary vary latter and the rpm gies to 8100-8200? What mod would you suggest in order to reduce the drop at higher speeds? And do you suggest a aftermarket muffer?
2 stroke engine never die...
Great video
easiest way to explain cvt tunning on the web. 1 extra gram on the rollers will give the engine 350-450 lower rpms at same speed (wich helps on fuel economy as well as durability. not all us us are racers. also try a gear set to combine and have better cruising speed
Thank you. Those are the type of comments that rock. Lamens terms for beginners. I want too high speed for cruising, and got the 14/37 gears for my stock 150cc. I just got a performance clutch with red 2000 rpm springs. What rollers would be best in your experience? By placing the new gear set for top speed, i would like to try the best to not loose to much torque at moving from a stop, as I do have some hills around me where i live. Thanks
@@leroijr407 so what’s the best combination for TopSpeed?
Changing the gear also
soft contra spring for better fuel consumption also?
@@zanuarrosyidi4034 no need to change the stock contra spring. It will shift rapidly from low to higher gear ratio. Tuning the rollers can prevent or compensate this thus no need to change the the contra spring. In addition, clutch springs must be stock or even softer than stock for best fuel economy because it does not need higher rpm to engage.
Hi!...and thanks for all your advice and sharing your (considerable) knowledge. I'm going on a long trip next year (6000 miles), and would like to know if there is anything I can do to improve fuel economy, especially in the clutch/variator area?
Thanks! Sounds like a blast! Maybe try to tune the variator to keep revs lower than max power, more in the "max economy" range.
Thanks!
Great real quick
Hi! Newbie here. Just want to ask, when buying contra spring, for example, do you need to buy the spring specific for your unit? Or did I just ask the wrong question, and all contra springs are universal to every scooter ?
And the rear Contra spring assembly some of those have angled slots that the rear cheeks will move in the angle of those will allow down shifting when applying throttle when starting up a hill or coming out of a turn.
This angle can be fine tuned by a lighter or stiffer country a lighter spring will allow quicker and lower gearing giving higher RPM changes.
Stiffer spring will give less of downshifting with less RPM gang when full throttle is applied.
Sir in your observation as an expert, what is the best roller for 1,500 center spring? Does high rpm center requires light weath roller? For speed?
I really appreciate your explanation on the CVT. Can I please ask some advice? Sorry in advance for the long message. What if I have a Chinese GY6 50cc engine with 80cc bbk and aftermarket exhaust with Keihin carburetor and higher gear ratio to get better top end. I haven't done a thing with the CVT except for variator which wasn't much. I think I may even be running my stock rollers again. I know that was stupid not to do anything until now but should I use the 1500 or 2000 spring and what size sliders or rollers should I be running? I am experiencing a big from like 15-30 mph and it seems like I should be getting a better top end speed. I'm currently getting about 42 flat and 50-52 downhill lol. Can you please offer me some advice? I would truly appreciate your help brother!
Please give me more tips for tuning of cvt thanks
Hi great video. I used NCY 12g rollers on my Honda Navi but at the top end speed I’m getting a vibration, I wasn’t having vibration with the stock 17 gram rollers, any thoughts on why? I did notice the 12g rollers have different looking sides on them. Do you know if they all have to be placed in the same direction? Rollers did not come with any directions and can’t seem to find any information or videos on it. I’m thinking I might have reached peak RPM and power band but not sure Thank you
I agree. I chek 24g off stock i reduced to 20g by drilling it. Now accelerate is incresed. 😁
Hi there thank u for the informative video! I was wondering if you have heard of 2 angle on the variation! And how does that work! I am considering modifying my cvt! Would like to know more and how it would effect my performance!
Thanks! Like dual radius roller ways kinda? I'd say how well it works depends on how linear the contra spring action is, and if it's designed with the increasing inertia of the rollers as they move outwards in mind.
Some rollers has a closed side. How should we place them? Is Closed side towards clockwise right? In this way, it does not collect dust inside and change its weight i think.
So...if I got it right, deffinetly I will need heavier sliders for my 2000rpm clutch spring.
Or keep my 13g sliders but reduce the clutch spring to 1000 rpm..🤔
hi sir i have 125cc scooter...what combination of flyball i will use?my weight is 83kg...tnx for the reply!!!
Is it any different between stock and "high preformace" variators? I have changed rollers to lighter and it accelerating quite good, max is 104km/h. and i have stock variator. is it worth to buy better performance variator? RPM at max speed is ~11500
Hi sir, i just want to ask if how to add speed to our scooter, higher rpm or lower rpm? Caus i just got my first scooter (Yamaha mio i 125).
Thank you for the informative video, I got a few question off my head.
My scooter is kymco downtown 300i aka nikita. Peak torque at 6500 and max hp at 7800.
1) what will be best for wide open throttle to tune to peak torque or peak hp? And does running it this way means that the gear ratio only shifts after 6500?
2) stock clutch engages at 2.5k rpm, what should I be tuning the clutch to engage in for Hit clutch? 4k 5k? Will that give a very rough start off.
I am using it for city terrain and sometimes touring.
Stock roller weight was 15.5g x 8
Now I'm in malossi 18g x 6. WOT from 0 goes to 7100rpm. Currently satisfy with the 0 to 80. Just want to understand the above school of thought.
He must be busy...
I just put 4.5 gram rollers in the variator of my sons 90cc quad and if I give it full throttle it feels like the belt slips but if I ease on the throttle its fine. Will a heavier main spring in the clutch keep it from slipping? Tia
Please explain how to rim the bushing to get the full range of the variator.
should I shorten both the bushing & roller case or just bushing to make belt go higher?
Hello guys! I have a honda SH 125i. I replaced the variator with a new malossi multivar 2000 I've noticed that the speed dropped down but i can hear the the motor is running full power but not mutch with the speed. I need your help thanks
Har en Aerox som går 80 på flata å 30 opp bakkene🙂 hva skal jeg gjøre?
I have aprilia sr 50 what best references i have to use
I cant make it faster than 65km/h its air cooled now and the back clutch is easy to open its not hard and i used 6.5g rollers and it was heavy and now i use old 4.5g and its not heavy that much but still slow about 65km/h
I dont understand what u said after u put à mark in the variator what should i make it shorter to the belt get up ?
Since the clutch is the rear pulley i removed my variator. Cut off and saved the center and welded a small machine pulley on. I installed 2500 rpm clutch springs. Now i finally have a fun go cart. It will run 55 plus and spin tires on take off. My next project is loosing all pulleys and belt and going with a cent clutch
Hi. This is concerning a utv crew with dump bed. It's very heavy I know but I want it to grab at a lower RPM.....it will run up to 53mph with just me in it but I don't care about speed. I use around the house for pulling a small trailer and trail riding. What can I do to the primary or secondary to give me faster take off without running 15mph and 3800-4000 rpm? This will also make it more comfortable to ride in yard because it will be quieter while running 7-18mph. Thanks
how do i know what size my belt should be ? I have a honda navi 110 cc scooter and it seems not to have its original size belt, because goes beyond its max speed (81 kmh) on straits or downhills but it doesn't have enough torque to go strongly on the uphills... so what should i do ? where do i get the size number of the factory belt ?
Hi have u tried smoothing out the ramp gradients with epoxy so theyre not as steep ?
Sorry hi brother i have scooter problem like this problem.if i start is working good when i go round with handle is start stop.Can you let me know what is problem.thank you brother.
i have a gilera runner 125 upgraded to a 172 with melossi kit and a melossi exhaust with green clutch springs and light rollers , white big spring , melossi gears also a 26 polini caburator but the launch is not as aggressive as i would like it to be any tips ??
What would cause drr 90 cc quad to rev like crazy but not shift. It’s like riding in 1st or 2nd gear if lucky. Motor runs great there is no slipping. I marked variatir to check travel of belt and looks to be traveling all the way. Yet I don’t see how it can be traveling all the way up cause it’s not shift or changing ratio. It just takes off very well then tops out immediately Erving to the moon about 15 20 mph. I bought tach and will be taking a closer look at it with tach. Gonna put on stand and try running it on stand. Thanks for very imformative videos.
My scooter 70cc 2stroke pulls hard af in low hear, but when it goes into 2nd it doesnt pull very good, also uphill it stays in high gear untill i get to like 10mph, i have stiffest contra spring and 4.5g rollers, new belt, and a new clutch, with stiff springs....what should i do??
Why not use just full metal variator rollers. Surly some weights turned down from some stainless bar stock to correct diameter and length then hollow out until the desired weight would work fine. Would it not be alot more durable and move more freely too ?
Is there a way to replace both ends of the cvt to achieve higher top speed?, I am starting to look into this, I normally do other motorbikes and just change the front or rear sprocket to achieve the wanted ratio...
Thanks.
So whats a good tip for the rollers when trying to just achieve top speed
Hi. Have the same issues that the belt doesn't ride to the top most part on my stage6 sports pro variator with 5gram rollers and with 1500rpm contra spring and 1000rpm clutch spring?
Hi i bought a jiso variator and the seller told me that it requires a g ring. I dont have idea what is that g ring. I assume that he is talking about variator shims. Is that correct?
Can I put a 6 grams in difference of weights when im putting a light weigth and heavy rollers?
Very good explain how cvt work
From 2020
Which is better, heavier or lighter clutch bell?
Good day sir i have a question the higher rpm = more topspeed?
I'm in Thailand and have a 4 stroke Yamaha 125cc scooter, could u please help me with what weight rollers u think would b best in my variator, I have tried a lot of different weight rollers, combined 6 roller weights from 41g to now 63g and I can't notice any real performance changes, should I go lighter or what would u do and use, ur videos r very easy to understand which is y I subscribed to ur channel and I hope u can help me cause the mechanics here either just want ur money or don't know what is best, being a foreigner and watching young kids fly past on the same bikes is upsetting cause they obviously know what's best but won't share any knowledge with foreigners, thank u for any help u can give me
ok so i have a 2500 rpm contra spring in my scooter but the clutch springs(the little ones on the pad are 1500 rpm ) will that effect the top end speed at all or should put the stock springs back in it cause it feels as iff the belt is slipping and i cant even think of why
Hi...can u plz suggest to me what the best weight roller for sym jet14 125i to make it more pick up n faster..
2STROKE STUFFING - i have a china brand GY6 125cc scooter with 13grams all rollerballs.. i had driven it uphill road and it climbed slow at around 30kph only being easily overtaken by a 110cc scooter and 115cc semi-manual bike.. i had adjusted its carburetor jet pin also to 2nd level.. new vbelt, new rollerballs, new essential oils, new clutch systems.. what could have gone wrong?
Hi
Have a 250 cc scooter and a have changed the rollers to 12 g on the var and all i got was very high rpm
And not much acceleration
Pls help
Hello, ty for the info!
Recently i installed a Yield Exhaust Pipe on my 50cc and when im between 40-50 km/h the moto lose power, but After the 50 it like she have a turbo and reach +85 km/h. What you reccomend for the moto dont lose the power between 40-50? I think with the Yield Exhaust Pipe the moto have a better performance at higher rpm... So ligther rollers could be better because the moto Will reach higher rpm faster, rigth?
A good video If you are a 120kg what would be the best set up for stop Start in towns thanks. Jeff
hi there would you recommend or have you tried using super lube on your torque drive? planning to regrease mine thanks so much great vid btw. ✌🏽
was reffering to super lube silicone base btw the one that we use for brake slider pins since my torque drive has rubber o-ring on it and silicone base is safe on rubbers right, but i am not quite sure how will it hold on our torque drive
Hi there! I did try to mix my roller a few time with different gram. But I can't get the top speed to increase from my bike. I am currently riding a 4 stroke Aerox 155. Is there any other method? Currently I am using a total of 60gram roller mix. 3×8g and 3×12g. Should i change to a lighter roller?
Do you have to grease the rollers and any idea how to remove a stuck clutch going to try a puller just waiting on that
I have a question... ok so I am doing my cvt system on my yamaha zuma 125... what is the best slider weight mix I can use to balance it out.... I want speed!
I have a Xpro maui 50cc moped belt broke and I changed the belt but now it will not start up? Any ideas 💡?
I HAVE A 125 CC AUTOMATIC HONDA SCOOTER. HAVE REPLACED THE CLUTCH SHOES, THE BELT ALONG WITH THE ROLLERS. THE SCOOTER RAN WELL FOR AROUND 400 MILES, BUT HAVE STARTED TO GIVE HANDLE VIBRATION AGAIN AT LOWER SPEED. WHAT SHOULD BE THE REMEDY.
PLEASE HELP. HOW CAN I MAKE MY MOPED FASTER (TOP SPEED)! Stiffer Springs ? lighter springs? Rollers??
Thanks sir. From Philippines.
what about if the sleeve is the same, but the spacer that goes in first place in the crankshaft is shorter or longer? becouse i have the stage6 and the malossi
i got suzuki address..my problem is, any weight roller i use does not fit properly..when engine idle, the roller sound knocking badly..but it have smooth sound when running..it have same problem when i using genuine pulley set from suzuki..do you have any tips for it boss?
Hello everyone!
Does anyone know, the difference in variators design, betwin 2 stroke and 4 stroke transmission?
I have 180cc 2st Hexagone, and it drives me crazy, cos it is taking off slow, like in 2cond gear,then its fast. I did put shims to make the belt be placed lower on the variator and drive plate, so it can touch the boss shaft (because from the factory, the belt rides almost 1 cm higher), and the yake off improve amazing,but then it feels like I'm out of demultiplication( same like just having 4gears not6). Incant find a solution. Because i cant get dr pulley rollers anymore on the market, that would have kind of solve the problems.
I have a chinesse 150 cc scotter after 4000 kilometers the nelt pop off after 30 minutes of riding i have change 4 belts in the last month whay can be wrongn
Yo , so.. i got this minarelli replica i think , its a keeway f-act50 2007 two stroke , i wanna make it go 80-90 km/h and have a fast takeoff , what collour aprings for the clutch , what roller weights do you reccomend... thx in advance :)
Did you tell me what size shim would fit the shaft for a 150cc GY6