216 630 9573 if you can new phone and don't forget about it 48 and work on cars before but this was gonna long time can't drive l gone need to try and get it going any time call you can or will idk
It’s taken me over of year of watching videos like yours to finally indulge my inner child. Being north of 50, I have no idea how much I’ll ride the thing...but I just ordered my Wildcat motor this week and am narrowing down the beach cruiser that will fit my style. When finished, it will come close to your dream build that you made the 2 part series on. Thanks for the helpful videos...I’m sure they’re gonna help me with my mid-life crisis.
Go to Thailand, ditch the missus and you can, cash up first , like your first acid trip, GO you will never be the same again and with a grin on your face j
as someone who worked landscape maintenance i know that most of our tools were 2 stroke, chainsaw, trimmer, gas blower ect. and i was always under the assumption it was becasue not only the versatility of movement not having to worry about the engine staying level during operation as well as their abilitiy and optimized performance as an engine that is designed to be at full throttle for long periods of time. for example during hedge season we use gas 2 stroke hedge trimmers and run them up to 3 hours straight at sometimes comeplete full throttle. these engines operate like this 10 hours a day and these machines last 5 years or more. I always here people on the motorized bike community though say that 2 strokes dont like to be at full throttle for long peiods of time. Im curios why is this the case as most other 2 stroke engines are designed to be operated at full throttle for long periods of time, i men think about it Even lumberjacks how would they be expected to work all day if theyre always running half throttle and letting the engine cool down every hour.
The only thing I can really say after running mine is that the stock exhaust has to go if you do buy a better carb. While running a larger really expensive carb I did notice that I got better performance but it wasn't great because more fuel in means a better exhaust is needed to get the burned and spent fuel out.
if they had an awards night for best teacher of motorbikes you'd win 1st in every category. ive been bu io ling these bikes for a yr n a half. im still learning. i buy bikes that ppl have no idea how to fix em,so i grab them for $100 bux or less. i sand ,primer, paint,clear coat,rebearing,and grease,put togather from birth to re pairing of or replacing the motor and flip them for 350 to 500 . but i learn from you hughes. your an award winning teacher. ken.new port richey,fl
i respect THE Men here.. Hughe.. the thing he said about the carburetor is so F true after 3 years (quarantine get me in to the hobby) i spent money in every carburetor i saw people use on the internet and every time i when back to the NT there is no way around on a china doll motor (just a porting to take the lips out of the intake and exust maybe but just that nothing else) keep your NT on people
My first bike build I was in it off the start. Wide open all day. It never failed .. sold it eventually but it was the most fun bike I'd had to this day.
I’ve been running 40:1 for years and years in just about every 2 stroke engine I’ve had and I’ve never had any issues with it not oiling properly or wearing out prematurely!!! Infact it’s more than good enough!!!! The thing most people don’t understand is that 2 stroke motors are happier in the high rpms and they don’t like idling too much!!!! You end up with fouled plugs and clogged spark arrestors when you constantly run a 2 stroke engine in the lower rpm range…
I've rejeted the stock carb to a 66. readjusted the "E" clip leaner, top notch. Starts hard. just crack the throttle the engine will slowly wind up. The engine seems to clear it's self at a very low throttle, I can feel the raw power come up. If I add throttle it blubblers, come back off the throttle and it will clear again and run with power. Smaller main jet still? Then richen the needle setting? Zeda engine bottom, compression head, hotter ignition and plug, the big box reed, stock NT carb. 4 inch tube between the carb and the reed box.
The key to going fast with small displacement engines is the fuel. I was able to go 50mph on 49cc two stroke engine using 110 octane trick fuel in 1977. I figured it out when I was 16 years old. It’s not complicated 🏁🏁🏁
I made a case reed lower between them two case bolts I didn’t want to not have them bolts. I tapped the holes for the reed valve to 6mm thread. I am going to make a bracket for the carb so the reed bolts don’t take the load of the carb.
Just had to order a magneto seal for my baby bee today, hopefully I don't end up having to change anything else for a while, except for maybe a new flex exhaust with the expansion chamber. A little less effective than the fat belly, but Itll look great and should work better than the stock for my beach cruiser setup
What is the best way to bring down the noise or witch exhaust silencer maybe a homemade one??? I'm downtown Montreal... Bad boy wants to ride his badboy bike...
Hydraulic ebike brake kits are a great upgrade as the tectro's are meant for higher speeds and I don't replace them too often, about 500-700 miles depending on how aggressive I am with the breaking
I live about 2500' in elevation. I took my Phantom 85 V3 out for a test spin. Runs great but after awhile about 2-3 miles, it wants to bog down and cut off. That is because it's too rich, right? I've got jets from 65 up to 70. What jet size do you think is best for my elevation?
If it runs worse after a few miles then I'd suspect the coil or CDI going bad. next, I'd look to see if the gas tank is venting properly. might be starving for gas
I was wondering if you can tell me what's the best rear sprocket to use it seems like all the kits come with a 44 tooth is that faster than a 36 tooth for example does it make it run smoother can you tell me a little bit about the rear sprockets
I run a b6hs ngk plug and after replacing my throttle cable (it was too short after adjusting for crappy hp carb when swapping to an nt speed carb) and changing the jet to a 78 jet is running great. Got a 40t on the wheel and a 10t on the motor it's getting up to 36mph and I can't be happier, it's my first restoration on my first gas bike and I'm officially addicted. You also do a great job on simplifying and explaining how to modify these bikes
The best description of these bikes I’ve ever heard i’d say it’s more like 60% fine 40% maintenance but that’s probably me just being lazy and letting my engines blow out
I purchased a bbr stage 4 high compression head this is my first time building a bicycle engine kit I put the head on between the head and The jug I can still see the copper gasket and the head bolts there's a gap but it looks like it's sealed I have two gaskets at the bottom of my jug I don't know if this is normal is there supposed to be a small Gap I'm confused about it if you could help in any way I'd appreciate it thank you
man I love your videos! I just built my first bike and your videos have saved me from probably weeks of trail and error and countless headaches. So thank you for all the knowledge and being halairpus
I completed my first build , the Bikeberry BBR tuning 80cc 2 stroke about a month ago and was somewhat pleased it runs good , hit a best top speed of 34 yesterday. I said its time to upgrade so I ordered theFVrittolong long exhaust pipe muffler, a high performance cdi ignition, and a 44 tooth sprocket set. Will I get improved performance with that exhaust. I t just looks so much better than hanging down in front of the motor
Not sure which pipe you are wanting to upgrade to but most larger volume pipes will offer some better performance. Most important thing in performance is porting and jetting
Dangit.I subbed to you around this time as you made sense out of all the ..stuff...being said about these.>Obviously this is 3 Years later.(Thnx YT). I did my plugs by Your scale and the engine did Great.Thank You.Never screwed with 'jetting'.I took a punch and tapped in the hole a Tiny bit as the plug was wet.Fixed it.Tan plug .(I checked before and after with 'torch cleaning' kit wires,and went down a hair)
Mr hughes, thanks for share all this great information so helpful about motorized bikes,&others topic, say hhello from panama republic, joe, thanks, continuye.
I i wished to take my 80 cc 2 stroke motorand put better bearing in what would i install i already have a high performance pipe and this week i will work on porting the intake and exhaust ill probably will b e changing the jetting im sure ive learned alor from u THANKS
I ordered a banana exhaust for 20 bucks on ebay. I wonder if that will up my power? I noticed the exhaust and muffler that came with it was pretty lame.
Good Morning Do you have any suggestions or thoughts for a exhaust pipe. I have a GX7 29.. The high compression head won’t allow a bolt on.. The banana pipe won’t clear the front wheel... SBP ES02 is not available.. Do you have any suggestions or do you have one you can sell me??? I’m in Cleveland Ohio...
Hi Eugene, i’ve been looking at purchasing another 80cc kit. However I’ve looked and a couple of different models and the specs of the motor are exactly the same (identical) but the maximum speeds are about 10kph difference. Why would that be is there a speed limiter on these motors? If not am I able to increase the speed with my racing head and racing carburettor that I have. Thanks very much. Take care buddy.👍
Expect 40-51kph on average. A poorly balanced engine might get less. An engine with less trash in the ports and a better balanced crank might get closer to 60kph. No, there isn't a limiter per se, but the limits are manufacturing variables / defects
I am a new subscriber, but I appreciate your content and I saw you did everything very professional and you seem like a good guy and forget about it love the Boston accent, but if you could give me your advice on, can I get a raise and head to the only ones I can find say 66 to 80 cc will that still fit on the stock? and what brand bearings would you say are the best? If you get time, I would appreciate if you could respond to this. Thank you again appreciate your contact you have a new subscriber forever.
NT is the best other than a True Dellorto. The "HP" is a cheap ripoff. No real magic carb. Balancing, porting, port timing, proper expansion chamber, and jetting is what will make these motors run best. Once you have all that work in a 50cc Morini or KTM engine will be far better, cheaper, and more reliable
@@HughesMotorized a stock kit from ebay dynos at 1.5hp without the air filter cover adds .5hp then jet matching adds a ton it just shows its not a very refined carburator
I had a question, I don't see a reed valve on here, would it be worth investing in a reed valve kit for an 80cc and windowing out a piston to get better performance? Provided I did these 6 things on top of that first.
So have been riding these bikes over 10 years worst thing is the exhaust pipe vibrate sluice wears out the bolt hole just makes it louder all of a sudden I have a fast high RPM dried reducing the adjust Gable and throttle body. Help. Please. And to me coaster brake is great for stopping faster
Im brand new to this hobby, your channel is awesome!! I subbed instantly. So im not really concerned with breaking the sound barrier. 35 to 40mph is perfect. I live in Pennsylvania (Johnstown Pa) i was given by my buddy a BBR 80CC, It runs good. It has the 3 prong plug and he was running 16:1. Whats your recommendation on the mix and plug i should use?? Thank you for any help
G,day Eugene. I’m just wondering what Dremel attachments do you use when your porting out the intake and exhaust outlet please. Are they the orange and green coloured carbide bits or steel milling bits. I just brought a Dremel, I’m not used to what the attachments do. Thank you for your help I appreciate it mate. Take care buddy.👍
I bought one of this little 50cc engine and installed. Having hard time to started and it doesn't idle. Only runs at about 50% throttle and up. Cheched compression and have 70 psi. What can I do to bring that up little higher? THANKS!
Hi, I'm from South Africa, happy to have discovered your channel. I use my bike for fishing and tow a trailer, i sometimes find it difficult to start the motor by pedaling, i wish to fit a pull start, our local guys say the pull starts is crap and don't recomend it. What is your experience and can you recomend one that won't break the bank? Looking forward to hear from you.
Howdy Sir, I took your advise about jetting mt NT carb at 678 foot sea level. With a #65 jet and the groove clip on the pin set to the top groove the engine runs great. I do get a surge at top speed of 25mph. smoothest running speed with a 44 tooth rear sprocket in 19mph. Not too bad for a 1964 Schwinn Typhoon, Thanks again. you do know your stuff.
Never mind, i rewatched many times, i understand now. Thank you for all your help. I just had to change my magneto your video taught me. I was wishing i had somebody who lived by me who knows about these, and boom I found you. Awesome thank again
@@HughesMotorized hey boss, do the throttle cables stretch out over time and need replacing? I adjusted all the areas it's little tighter but seems to not have as much power in the 1/3 1/4 throttle area, should I replace. Or is there something else maybe. Thanks
i know im getting to be a pain in the ass but my question was can i run a mag on the back and a hub front spoke without it being to strange .I assume its a wider rim on the front compared to back mag size thank for your time Daniel Rose
I like your style bro. I wish I could apprentice under a small engine guy such as yourself. 460ft is my current elevation... I've gathered I should clean up the ports, check elevation and jet accordingly, change to a 36 tooth sprocket, modify the exhaust(or chop it off🤷🏻), add a spring tensioner, and get a better intake manifold(or chop it off🤷🏻)... Did I miss anything lol
@@HughesMotorized reed valves are pretty cheap may have to get one of those but I'll have it to repurpose this is just a 50cc🤷🏻 but it was a gift from my neighbor he just wanted to build one...
How are u Eugene? I just have one other question and that is can you use sandpaper on the inside of the barrel? (Bore).. I have some burrs that are on the inside of the bore at the transfer ports and intakes, but I am too scared to use the Dremel in case I scratch the cylinder. Am I able to use some sort of sandpaper maybe 600 wet and dry to take the burrs off or does that affect the coating inside the bore?Thanks for your replies they have been very helpful you have been excellent thank you mate.👍👍👍
the kit told me to run premium 97 gasoline mixed with 16:1 oil or something close to that, with my stock kit, but since u mentioned the gas mixture that is recommended is wrong, do u think premium 97 is necessary? My weedwacker uses 87 with a 40:1 mixture and it would be much more convenient if they both used the same gas
I was curious as to how I can rejet a carb without buying a new jet, I’ve heard that I can do it with solder but I’m not sure if this is true or not. Also, how can I install a key ignition and which key ignition would you recommend?
You need a torch, solder, drill press and a micro drill set. Go easy as the bits are easy to break. I'd say hide a switch that merely shorts out the kill switch wires. Or get a key switch that is normally closed and opens the circut when the key is switched on
Lower number = hotter. Get. A B6 plug and compare. You decide. I'd run a hotter plug inn the winter but if no improvement then no need.. Too hot can damage however one plug up should be fine
Bro I installed one of those racing heads from Amazon on my pk80 wild cat, gained 5 more mph But engine got hot then I looked at the piston an was burnt , I also broke a strut on the cylinder bolt trying to tourqe it , now I the stock head with 3 bolts lol, going to buy new cylinder struts . An better cylinder an piston , note I tired even running rich on that head , maybe was leaking air causing it to over heat , fuel ratio did help but not enough carefully with them after market Amazon heads , I know they make one for my wild cat going to try that In the future thanks bro
Thanks for this great video! I’m getting an engine kit tomorrow, I have 2 stroke synthetic oil. The engine has not been used at all. Should I go 16:1 during break in. I’m confused on why everyone keeps saying 16:1, then some people say 20 or 30. Then you say 40. Thanks!
Hey question for ya! I see these motors say they can fit on 24-28 inch mountain bikes. is that true? Mainly a 24inch one is the target goal. 80cc china kits like off amazon
I'm sorry about the kid in Colorado, even though that's not your fault you must still feel some kind of way about it. It's like this, if you've never ridden a bike at high speeds and felt how easy it is to lose control you probably wouldn't want to be much faster than 35mph anyways. Been 30 mph on a 16inch bike, terrifying lol!
If it's running good then you good. The plating inside the cylinder is one thing that will eventually kill a good engine. people have gotten 5-10,000 miles off an engine w/ good luck. Your mileage will vary. You can have a perfect engine and BOOM. it will die. The longer running ones might outlast the wheels on the bike. Sorry, no easy answer due to these engines being so cheap
Hey Joe can you possibly do something on a 47cc pocket bike off-road atv motor install on mountain or bmx style bike plus rear sprocket options / install been waiting on motor 3/4 weeks it's actually 12days late today but anyway it would be helpful and appreciated on build
If u get a new carburetor like a high performance carburetor just swap the jets out from the nt carb to the new hp carb and it’s actually the balanced jet for it
Careful with these motors. I don’t know what it was but my friend’s caught fire while riding. There a vid on my channel but it’s not great. Make sure nothing is loose or leaking
I’ve got a China girl that I built 3 years ago..I had heart surgery and now rehabed and feel good...what do I do to get it running again. It’s been well kept inside of a garage all this time, I just don’t know where to start. T
I'd just rebuild the piston or slap new rings on them and port the cylinder jug also carb clean and take apart the stock carburetor, these carbs can run forever unless they physically are damaged.
Nice video ..on the wheel you recommend does it fit a tire size of 1.75?. Also I would like to see a video on this if possible explaining more details . Thanks
@@HughesMotorized Just recieved my rim from Husky bikes. Rim was shipped bent and not packaged very well. Its 12 o'clock central time and still waiting for a return call from Steve about my return shipping label. I request a new rim they said they are out of stock 😡worst experience ever. On the other hand it's a nice rim .. but bad customer service from husky.
Thank you so much. Anyways, I’m 14 and I nearly got killed doing 35 on my motorized bike thank god I literally got no broken bones or anything. Just very minor bruises
A real pk80 or zeda80, make sure it's one that has 8mm mounting studs. There are a lot of cheaper older versions of china doll motors on ebay that still have the 6mm mounting bolts that break off easily. Avoid them. Also, upgrade the throttle tube assembly with a metal one, the plastic stock ones in the kits always break where the cable attaches.
As a motorcycle mechanic & motorized bike builder that is the most intelligent engine explanation I have ever heard.
Thank you. I try
What is going on I'm about to do a 66 80 bbr and I never had any luck how they are hard to get together get
@@HughesMotorized half the time I can't get into the new phone I'm old school and shit new school got but ya help with it needing
Need help with bike
216 630 9573 if you can new phone and don't forget about it 48 and work on cars before but this was gonna long time can't drive l gone need to try and get it going any time call you can or will idk
It’s taken me over of year of watching videos like yours to finally indulge my inner child. Being north of 50, I have no idea how much I’ll ride the thing...but I just ordered my Wildcat motor this week and am narrowing down the beach cruiser that will fit my style. When finished, it will come close to your dream build that you made the 2 part series on. Thanks for the helpful videos...I’m sure they’re gonna help me with my mid-life crisis.
Just need a 19yo girlfriend and some new tattoos
@@HughesMotorized Eugene! Hey bud, thanks for the helpful vids...and this little tidbit of advice (sounds like sage wisdom to me 😎)
Go to Thailand, ditch the missus and you can, cash up first , like your first acid trip, GO you will never be the same again and with a grin on your face j
@@gotchurebeacons-gaming9023 howd it go bro
as someone who worked landscape maintenance i know that most of our tools were 2 stroke, chainsaw, trimmer, gas blower ect. and i was always under the assumption it was becasue not only the versatility of movement not having to worry about the engine staying level during operation as well as their abilitiy and optimized performance as an engine that is designed to be at full throttle for long periods of time. for example during hedge season we use gas 2 stroke hedge trimmers and run them up to 3 hours straight at sometimes comeplete full throttle. these engines operate like this 10 hours a day and these machines last 5 years or more.
I always here people on the motorized bike community though say that 2 strokes dont like to be at full throttle for long peiods of time. Im curios why is this the case as most other 2 stroke engines are designed to be operated at full throttle for long periods of time,
i men think about it Even lumberjacks how would they be expected to work all day if theyre always running half throttle and letting the engine cool down every hour.
the kx85 expansion chamber pipe i got was a major performance upgrade it sounds like a turbo spooling up and acts like it too its crazy
The only thing I can really say after running mine is that the stock exhaust has to go if you do buy a better carb. While running a larger really expensive carb I did notice that I got better performance but it wasn't great because more fuel in means a better exhaust is needed to get the burned and spent fuel out.
It's a matching thing like you say. best carb ever wont help if you have a crappy exhaust and or bad porting
All I can say is yes and no to your comment there are so many variables and no Motors are the same
if they had an awards night for best teacher of motorbikes you'd win 1st in every category. ive been bu io ling these bikes for a yr n a half. im still learning. i buy bikes that ppl have no idea how to fix em,so i grab them for $100 bux or less. i sand ,primer, paint,clear coat,rebearing,and grease,put togather from birth to re pairing of or replacing the motor and flip them for 350 to 500 . but i learn from you hughes. your an award winning teacher. ken.new port richey,fl
aww shucks, thanks
i respect THE Men here.. Hughe.. the thing he said about the carburetor is so F true after 3 years (quarantine get me in to the hobby) i spent money in every carburetor i saw people use on the internet and every time i when back to the NT there is no way around on a china doll motor (just a porting to take the lips out of the intake and exust maybe but just that nothing else) keep your NT on people
Preach!
My first bike build I was in it off the start. Wide open all day. It never failed .. sold it eventually but it was the most fun bike I'd had to this day.
I’ve been running 40:1 for years and years in just about every 2 stroke engine I’ve had and I’ve never had any issues with it not oiling properly or wearing out prematurely!!! Infact it’s more than good enough!!!! The thing most people don’t understand is that 2 stroke motors are happier in the high rpms and they don’t like idling too much!!!! You end up with fouled plugs and clogged spark arrestors when you constantly run a 2 stroke engine in the lower rpm range…
I've rejeted the stock carb to a 66. readjusted the "E" clip leaner, top notch. Starts hard. just crack the throttle the engine will slowly wind up. The engine seems to clear it's self at a very low throttle, I can feel the raw power come up. If I add throttle it blubblers, come back off the throttle and it will clear again and run with power. Smaller main jet still? Then richen the needle setting? Zeda engine bottom, compression head, hotter ignition and plug, the big box reed, stock NT carb. 4 inch tube between the carb and the reed box.
Might need a carb where yo can make more detailed adjustments w/ a reed. Might have an intake leak
The key to going fast with small displacement engines is the fuel. I was able to go 50mph on 49cc two stroke engine using 110 octane trick fuel in 1977. I figured it out when I was 16 years old. It’s not complicated 🏁🏁🏁
That's only gonna work if you have the compression to back it up
I made a case reed lower between them two case bolts I didn’t want to not have them bolts. I tapped the holes for the reed valve to 6mm thread. I am going to make a bracket for the carb so the reed bolts don’t take the load of the carb.
What's the best way to remedy getting rid of the teeth chattering vibration? I'm running a china 100cc on a Kent 29" cruiser frame
Dude 1:17 that is definitly what I do!! This is one of my favorite motorized bicycle videos and channels!!!
Great information. Building my 3rd and never knew any of this. But on the the carb jets, it's the first set that comes up? Or?
Just had to order a magneto seal for my baby bee today, hopefully I don't end up having to change anything else for a while, except for maybe a new flex exhaust with the expansion chamber. A little less effective than the fat belly, but Itll look great and should work better than the stock for my beach cruiser setup
What is the best way to bring down the noise or witch exhaust silencer maybe a homemade one??? I'm downtown Montreal... Bad boy wants to ride his badboy bike...
Hydraulic ebike brake kits are a great upgrade as the tectro's are meant for higher speeds and I don't replace them too often, about 500-700 miles depending on how aggressive I am with the breaking
I live about 2500' in elevation. I took my Phantom 85 V3 out for a test spin. Runs great but after awhile about 2-3 miles, it wants to bog down and cut off. That is because it's too rich, right? I've got jets from 65 up to 70. What jet size do you think is best for my elevation?
If it runs worse after a few miles then I'd suspect the coil or CDI going bad. next, I'd look to see if the gas tank is venting properly. might be starving for gas
I was wondering if you can tell me what's the best rear sprocket to use it seems like all the kits come with a 44 tooth is that faster than a 36 tooth for example does it make it run smoother can you tell me a little bit about the rear sprockets
I run a b6hs ngk plug and after replacing my throttle cable (it was too short after adjusting for crappy hp carb when swapping to an nt speed carb) and changing the jet to a 78 jet is running great. Got a 40t on the wheel and a 10t on the motor it's getting up to 36mph and I can't be happier, it's my first restoration on my first gas bike and I'm officially addicted. You also do a great job on simplifying and explaining how to modify these bikes
Absolutely LOVED this video, well put together. Awesome personality! Keep it up!
Thank you so much!!
This is the best channel on this topic. Now fight me about it.
Really dig your videos! I have a 26 in. Haro mtb. W/ a Zeda motor. Lovin' this hobby! 50% fun 50% maintenance!
Right on!
The best description of these bikes I’ve ever heard i’d say it’s more like 60% fine 40% maintenance but that’s probably me just being lazy and letting my engines blow out
I purchased a bbr stage 4 high compression head this is my first time building a bicycle engine kit I put the head on between the head and The jug I can still see the copper gasket and the head bolts there's a gap but it looks like it's sealed I have two gaskets at the bottom of my jug I don't know if this is normal is there supposed to be a small Gap I'm confused about it if you could help in any way I'd appreciate it thank you
man I love your videos! I just built my first bike and your videos have saved me from probably weeks of trail and error and countless headaches. So thank you for all the knowledge and being halairpus
Glad to help!
Ive been building sleds since the 90s. Just getting into these bikes, plan to build one for my daughter.
Excellent video.
Have fun!
I completed my first build , the Bikeberry BBR tuning 80cc 2 stroke about a month ago and was somewhat pleased it runs good , hit a best top speed of 34 yesterday. I said its time to upgrade so I ordered theFVrittolong long exhaust pipe muffler, a high performance cdi ignition, and a 44 tooth sprocket set. Will I get improved performance with that exhaust. I t just looks so much better than hanging down in front of the motor
Not sure which pipe you are wanting to upgrade to but most larger volume pipes will offer some better performance. Most important thing in performance is porting and jetting
@@HughesMotorized photos from my phone
Dangit.I subbed to you around this time as you made sense out of all the ..stuff...being said about these.>Obviously this is 3 Years later.(Thnx YT). I did my plugs by Your scale and the engine did Great.Thank You.Never screwed with 'jetting'.I took a punch and tapped in the hole a Tiny bit as the plug was wet.Fixed it.Tan plug .(I checked before and after with 'torch cleaning' kit wires,and went down a hair)
Mr hughes, thanks for share all this great information so helpful about motorized bikes,&others topic, say hhello from panama republic, joe, thanks, continuye.
My pleasure!
I just bought a f2 thruster exhaust a performance head a windowed piston and a reed valve and a jug to go with it did I make a good purchase
I need a good high performance cdi like you suggest but my motor is a duel plug setup, any suggestions
I i wished to take my 80 cc 2 stroke motorand put better bearing in what would i install i already have a high performance pipe and this week i will work on porting the intake and exhaust ill probably will b e changing the jetting im sure ive learned alor from u THANKS
I ordered a banana exhaust for 20 bucks on ebay. I wonder if that will up my power? I noticed the exhaust and muffler that came with it was pretty lame.
Needs a smaller jet from stock. #66
Good Morning Do you have any suggestions or thoughts for a exhaust pipe. I have a GX7 29.. The high compression head won’t allow a bolt on.. The banana pipe won’t clear the front wheel... SBP ES02 is not available.. Do you have any suggestions or do you have one you can sell me??? I’m in Cleveland Ohio...
Shoot me some pics of a pipe held in place. hughesmotorized@gmail.com
Hi Eugene, i’ve been looking at purchasing another 80cc kit. However I’ve looked and a couple of different models and the specs of the motor are exactly the same (identical) but the maximum speeds are about 10kph difference. Why would that be is there a speed limiter on these motors? If not am I able to increase the speed with my racing head and racing carburettor that I have. Thanks very much. Take care buddy.👍
Expect 40-51kph on average. A poorly balanced engine might get less. An engine with less trash in the ports and a better balanced crank might get closer to 60kph. No, there isn't a limiter per se, but the limits are manufacturing variables / defects
Can I add a high preference head on a 100cc motorized bike and what is the best spark plug for it
those are a one piece head and jug. Cannot swap the head out
How should I set the gap on the NGK plug?
I am a new subscriber, but I appreciate your content and I saw you did everything very professional and you seem like a good guy and forget about it love the Boston accent, but if you could give me your advice on, can I get a raise and head to the only ones I can find say 66 to 80 cc will that still fit on the stock? and what brand bearings would you say are the best? If you get time, I would appreciate if you could respond to this. Thank you again appreciate your contact you have a new subscriber forever.
I like his videos. These are probably the best sets of videos. General knowledge
plsssss tell me you know were i find jeting for the bofeng carb? thx and good work
Here you go amzn.to/49hd5vI
I have a two-stroke engine but I do not know what kind of spark plugs do I use it has a weird number I think what kind of spark plugs do I use
I know the hp carburator is decent but im looking for something alittle better could you do a review on carburators?
NT is the best other than a True Dellorto. The "HP" is a cheap ripoff. No real magic carb. Balancing, porting, port timing, proper expansion chamber, and jetting is what will make these motors run best. Once you have all that work in a 50cc Morini or KTM engine will be far better, cheaper, and more reliable
@@HughesMotorized a stock kit from ebay dynos at 1.5hp without the air filter cover adds .5hp then jet matching adds a ton it just shows its not a very refined carburator
I had a question, I don't see a reed valve on here, would it be worth investing in a reed valve kit for an 80cc and windowing out a piston to get better performance? Provided I did these 6 things on top of that first.
So have been riding these bikes over 10 years worst thing is the exhaust pipe vibrate sluice wears out the bolt hole just makes it louder all of a sudden I have a fast high RPM dried reducing the adjust Gable and throttle body. Help. Please. And to me coaster brake is great for stopping faster
Im brand new to this hobby, your channel is awesome!! I subbed instantly. So im not really concerned with breaking the sound barrier. 35 to 40mph is perfect. I live in Pennsylvania (Johnstown Pa) i was given by my buddy a BBR 80CC, It runs good. It has the 3 prong plug and he was running 16:1. Whats your recommendation on the mix and plug i should use?? Thank you for any help
40:1...3.2 oz oil per gallon. You'll stop fouling plugs. Get an NGK-B6
@@HughesMotorized Awesome thank you so much
G,day Eugene. I’m just wondering what Dremel attachments do you use when your porting out the intake and exhaust outlet please. Are they the orange and green coloured carbide bits or steel milling bits. I just brought a Dremel, I’m not used to what the attachments do. Thank you for your help I appreciate it mate. Take care buddy.👍
Carbide bits are best:
Vaccum Base Vise - amzn.to/3ct7Tr9
Carbide Bits - amzn.to/2MmZT05
Polishing Bits- amzn.to/3gXvFyW
Grinder w/ Flex Shaft - ebay.to/3drY1iF
I bought one of this little 50cc engine and installed. Having hard time to started and it doesn't idle. Only runs at about 50% throttle and up. Cheched compression and have 70 psi. What can I do to bring that up little higher? THANKS!
Sounds like an intake leak. Make sure carb is fully pushed onto intake
Hi, I'm from South Africa, happy to have discovered your channel. I use my bike for fishing and tow a trailer, i sometimes find it difficult to start the motor by pedaling, i wish to fit a pull start, our local guys say the pull starts is crap and don't recomend it. What is your experience and can you recomend one that won't break the bank? Looking forward to hear from you.
The pull start for these 2 strokes is garbage. They break early and often
@@HughesMotorized thanks for your response, appreciated.
Howdy Sir, I took your advise about jetting mt NT carb at 678 foot sea level. With a #65 jet and the groove clip on the pin set to the top groove the engine runs great. I do get a surge at top speed of 25mph. smoothest running speed with a 44 tooth rear sprocket in 19mph. Not too bad for a 1964 Schwinn Typhoon, Thanks again. you do know your stuff.
Glad to help
What do you mean by putting a smaller jet in? Do i adjust it? Or buy a different one? Thank you
Never mind, i rewatched many times, i understand now. Thank you for all your help. I just had to change my magneto your video taught me. I was wishing i had somebody who lived by me who knows about these, and boom I found you. Awesome thank again
Glad I helped.
@@HughesMotorized hey boss, do the throttle cables stretch out over time and need replacing? I adjusted all the areas it's little tighter but seems to not have as much power in the 1/3 1/4 throttle area, should I replace. Or is there something else maybe. Thanks
You're helping us a lot sir. Very comprehensible explantation. Thank you for your effort.
Glad to hear that
Very knowledgeable! I have a question about skirting the piston on the intake side. Does that actually help?
I put new head on and can’t get it to start do I need different plug cause the head is bigger and maybe doesn’t reach the piston area?
Is head gasket sealing? Are the nuts mating against the head? Most stock plugs work fine on hi-comp heads
@@HughesMotorized for a I high comp head i don't need to change piston right
@@crownatlanta4998 Correct. just the head and gasket. Then look into doing a plug chop and tune/jet carb
i know im getting to be a pain in the ass but my question was can i run a mag on the back and a hub front spoke without it being to strange .I assume its a wider rim on the front compared to back mag size thank for your time
Daniel Rose
Sure. Mix & match
I like your style bro. I wish I could apprentice under a small engine guy such as yourself. 460ft is my current elevation... I've gathered I should clean up the ports, check elevation and jet accordingly, change to a 36 tooth sprocket, modify the exhaust(or chop it off🤷🏻), add a spring tensioner, and get a better intake manifold(or chop it off🤷🏻)... Did I miss anything lol
Looks good. Go for the Arch style tensioner. The spring ones can allow too much slop and let the chain jamb up inside the drive cover
@@HughesMotorized reed valves are pretty cheap may have to get one of those but I'll have it to repurpose this is just a 50cc🤷🏻 but it was a gift from my neighbor he just wanted to build one...
As soon as i got mine i ported it and....WOW!!! RUNS GOOD
Fine job... you always have really good Info to share and it's much appreciated.
How are u Eugene? I just have one other question and that is can you use sandpaper on the inside of the barrel? (Bore).. I have some burrs that are on the inside of the bore at the transfer ports and intakes, but I am too scared to use the Dremel in case I scratch the cylinder. Am I able to use some sort of sandpaper maybe 600 wet and dry to take the burrs off or does that affect the coating inside the bore?Thanks for your replies they have been very helpful you have been excellent thank you mate.👍👍👍
You can use 320 grit paper just on the edges to remove any burrs.
the kit told me to run premium 97 gasoline mixed with 16:1 oil or something close to that, with my stock kit, but since u mentioned the gas mixture that is recommended is wrong, do u think premium 97 is necessary? My weedwacker uses 87 with a 40:1 mixture and it would be much more convenient if they both used the same gas
40:1 and reg unleaded is best
@@HughesMotorized awesome, thanks!
Hey I have a high performance head like the one you showed. What size spark plug fits it. I’m having a hard time finding the proper one. Thanks
NGK B6HS
Extra oil can help seal the combustion chamber to make more power.
Extra oil also leaves extra carbon. That carbon is abrasive and can accelerate wear
You still have carburetors for sale? need one for a 100cc
Hello!
I have a question, i have lot of 50:1 fuel and i just bought new 80cc engine and i dont feel like mixing new fuel.
Can i use 50:1 break in?
Yes you can
I was curious as to how I can rejet a carb without buying a new jet, I’ve heard that I can do it with solder but I’m not sure if this is true or not. Also, how can I install a key ignition and which key ignition would you recommend?
You need a torch, solder, drill press and a micro drill set. Go easy as the bits are easy to break. I'd say hide a switch that merely shorts out the kill switch wires. Or get a key switch that is normally closed and opens the circut when the key is switched on
Keep in mind most bike are still light enough to toss in the bed a of a truck.
Bike locks are still a MUST
I have a ngk B6S is that the same as B6HS
On the Amazon sealed bearings. Do I still need to use the oil seals?
You need to remove the seal on the internal side
first good explanation ive found for the carb assembly! thanks for the encouragement to take the 30$ carb off my shopping list LOL
Glad it helped!
My kit came with LD Z4JC with 3 prongs are they good or junk ????🤔🤔 🇨🇦
Decent, as long as it runs good
what are your thoughts on window pistons? i’m thinking abt getting one but i don’t want to wreck my bike
Will a NGK B5HS spark plug run just as good?
Lower number = hotter. Get. A B6 plug and compare. You decide. I'd run a hotter plug inn the winter but if no improvement then no need.. Too hot can damage however one plug up should be fine
Bro I installed one of those racing heads from Amazon on my pk80 wild cat, gained 5 more mph But engine got hot then I looked at the piston an was burnt , I also broke a strut on the cylinder bolt trying to tourqe it , now I the stock head with 3 bolts lol, going to buy new cylinder struts . An better cylinder an piston , note I tired even running rich on that head , maybe was leaking air causing it to over heat , fuel ratio did help but not enough carefully with them after market Amazon heads , I know they make one for my wild cat going to try that In the future thanks bro
Thanks for this great video! I’m getting an engine kit tomorrow, I have 2 stroke synthetic oil. The engine has not been used at all. Should I go 16:1 during break in. I’m confused on why everyone keeps saying 16:1, then some people say 20 or 30. Then you say 40. Thanks!
Go to HW store and get cheap 2 cycle oil. Mix 40:1 from the start. After you run 1 gallon thru then use the synthetic if you want
Hughes Motorized Great thanks!
16:1 break in period (2 tanks which is also one gallon)
So after 1 gallon, slowly go 40:1 doing a plug check to see how rich you're burning.
Hey question for ya! I see these motors say they can fit on 24-28 inch mountain bikes. is that true? Mainly a 24inch one is the target goal. 80cc china kits like off amazon
Rule of thumb is no the triangle frame is to small but I'd measure yours and measure the kit first and leave atleast 3 inches of clearance
Look up "bikeberry how to check if a engine kit will fit"
Any ideas on 4 stroke upgrades for the 49cc little china motor? Thanks
I'll just run open exhaust and open up air filter. Do a plug chop and adjust jets if needed
thanks brother
@@HughesMotorized wutz a plug chop my freind
Only rode my brand new motorized bike about 5 MI turned it off with the kill switch. Ever since then it won't start now. Any helpful advice?
The coils often fail early if no spark
I'm sorry about the kid in Colorado, even though that's not your fault you must still feel some kind of way about it. It's like this, if you've never ridden a bike at high speeds and felt how easy it is to lose control you probably wouldn't want to be much faster than 35mph anyways. Been 30 mph on a 16inch bike, terrifying lol!
Love your channel, Love you man. From UK
Much appreciated!
Does any of these modifications require a torque wrench?
Not absolutely. You just want to make sure you tighten up the heap nuts evenly. Not super tight. Just formly secure and you good
After about how many miles should I do a rebuild on my motor
If it's running good then you good. The plating inside the cylinder is one thing that will eventually kill a good engine. people have gotten 5-10,000 miles off an engine w/ good luck. Your mileage will vary. You can have a perfect engine and BOOM. it will die. The longer running ones might outlast the wheels on the bike. Sorry, no easy answer due to these engines being so cheap
Hey dude I'm up in Colorado should I run a hotter or colder plug cause I'm at a higher altitude.
Hotter plug B6HS...
@@HughesMotorized ordered a couple of those I'll let you know how it runs thanks man!
Hey Joe can you possibly do something on a 47cc pocket bike off-road atv motor install on mountain or bmx style bike plus rear sprocket options / install been waiting on motor 3/4 weeks it's actually 12days late today but anyway it would be helpful and appreciated on build
If u get a new carburetor like a high performance carburetor just swap the jets out from the nt carb to the new hp carb and it’s actually the balanced jet for it
Any opinion on pennzoil tcw3 oil?
It's a cheap engine. I'll run cheap oil
Hey, my bike sounds like it is four stroking sometimes how do I fix it?
Jetting it leaner. like a #66
Careful with these motors. I don’t know what it was but my friend’s caught fire while riding. There a vid on my channel but it’s not great. Make sure nothing is loose or leaking
I’ve got a China girl that I built 3 years ago..I had heart surgery and now rehabed and feel good...what do I do to get it running again. It’s been well kept inside of a garage all this time, I just don’t know where to start. T
New carb for sure. Perhaps need to rebuild the top end. New Cylinder and rings
I'd just rebuild the piston or slap new rings on them and port the cylinder jug also carb clean and take apart the stock carburetor, these carbs can run forever unless they physically are damaged.
Hughes Motorized thank you for the reply! I’ve got a new carb on the shelf👍
Dump the old gas
What if , you turn the cylinder around , so carb is in front . Increase flow ?
YES, you can do that. Many have. You have to match up the transfer ports or it will run like crap. I know several who have
Just seems for flow , carb in front , exhaust out back . Kinda Ram Air ,,,
@@jamesknickerbocker3410 good idea
Nice video ..on the wheel you recommend does it fit a tire size of 1.75?. Also I would like to see a video on this if possible explaining more details . Thanks
Yes it does. Here's some info on the hub : th-cam.com/video/jLEg1Nu0jaY/w-d-xo.html
@@HughesMotorized Just recieved my rim from Husky bikes. Rim was shipped bent and not packaged very well. Its 12 o'clock central time and still waiting for a return call from Steve about my return shipping label. I request a new rim they said they are out of stock 😡worst experience ever. On the other hand it's a nice rim .. but bad customer service from husky.
Video starts at 4:17 if you want to cut out the introduction
How to lubricant inside engines and clutch...... Because my clutch so rusty..... And not moving
Might need servicing. Perhaps some cleaning up.
@@HughesMotorized that waste time
ALL SQUEAKY CLUTCHES AND BRÀKES NEED OIL THAT IS WHY THEY SQUEAK ,,,,,GO MAN AND DON'T STOP
So 40 to 1 on 47 mm piston but what Abt 52-56 mm Pistons??
yes. 40:1
@@HughesMotorized where do u get ur bearings from cuz the ones in the phantoms are trash
@@joneserupinsmoke9161 here are some Timken ones : amzn.to/3Mmm1VP
Do you have a engine bearing video!!!
Nothing as of yet
Flex Tape?
You make great videos my dude
Very helpful. I just got into the motorized bicycle scene and this helps out a lot. Thank you
Glad it helped!
I have an idea for ya. A video showing an engine stand build like you have in this video. I think an engine stand is something we all could use.
Might do that when I get the time. Good idea. Thank you
Thank you so much. Anyways, I’m 14 and I nearly got killed doing 35 on my motorized bike thank god I literally got no broken bones or anything. Just very minor bruises
where r u located?
Im looking to buy a good quality 2 stroke engine kit any suggestions?
A real pk80 or zeda80, make sure it's one that has 8mm mounting studs. There are a lot of cheaper older versions of china doll motors on ebay that still have the 6mm mounting bolts that break off easily. Avoid them. Also, upgrade the throttle tube assembly with a metal one, the plastic stock ones in the kits always break where the cable attaches.