GY6 / 150CC CV Belt Removal, Clutch Replacement & Springs 

Man, just wanted to say how much I am enjoying your GY6 series. Ive just acquired a super low use, 1000 mile 6 year old 125CC scoot that has been standing in a container most of its life. It revs a whole bunch but wont go over 40 MPH. I suspected a problem someplace in the CVT and by watching your videos, I've gone from never seeing one of these engines to knowing all about them before I even break out the tools. You are a legend sir, thank you from merry England.

They told me I needed an impact to get the belt off...lol.You just made it very easy...Genius.🤩

Your videos made me understand how the transmission on my malaguti f12 works, thank you so much brother!

Thanks, we need more videos like this. Do it yourself videos are the best.. Thanks mate, keep up the good work

Great video I love these scooters. I change the weights on the variater it helps with acceleration

Most information vide I've seen yet ,very nicely done.

This is a man who knows how to get stuff done with the tools he has on hand!

thanks 4 sharing good step by step replacment :)

very good video my friend you help me a lot.now i must go find all this tools you use ))))))))))))))))))

Wow well i checked fuses and changed the spark plug, Ill get to work checking everything else. Thanks

Great annotations. I have a GY6 150cc and it's a bit different than the 50cc I started with. Still need a few more tools (like that impact wrench and a torch for opening loctite bolts) to make it so easy as you've demonstrated. Wish there were more mechanics like you here in Miami! Thank you!

Great video, thank you so much 👍

great stuff, thank you...

Awesome! Thanks !

I love the flops!

Has to be the best video on RU-vid for Clutch Removal. So many helpful tips cause I don't have a impact wrench. Thank you for this video.

Amazing!

Using the puller! This is the way

Thanks bro

I have a 50cc Tao Tao I putt around on. I just noticed a clacking noise coming from the back. When I first start out it seems like it is locked up like the brake is on and it clacks for about a block t hen stops and frees up and runs fine its been doing this for awhile but I cant seen to figure out what it is.I seen your video and am wondering if the clutch or something is going out

thanks for the info

thank you so much

Wow this is a great video thank you so much for sharing it really helped a lot and much better then the other videos I watch thank you again I was wondering if you knew what the small black square with a small tube like spot at the top it had a grease or oil on the outer part I didnt see where it fell from

I have new TVS Jupiter and it is just 4.5 months old and just 2550kms total run. 2nd free service is done. Tyre pressure is ok. Engine oil and gear oil is just changed few days ago. Rear tyre is freely move. My problem is that the scooter is always start to vibrating around 45 to 50 km/h speed and if two persons are sitting on scooter then its vibration increases and start from 35 to 50km/h speed. After 52 km/h speed no more vibrations. Vibrations coming from handle, floor board and slightly from rear side when pillion also sit. Is it required to use sandpaper in clutch cover, clutch shoe, rear tyre assembly and rear brake shoes and also clean the clutch cover and greasing the rollers in clutch and variator? I see some videos on internet to use ragemaar/sandpaper in rear tyre's internal assembly area, brake shoes, clutch shoes and also clean the clutch area and greasing all rollers of clutch and variator but it is not mentioned in TVS manual book and also service centre guys had never done it. I told this vibrating problem to TVS service centre during free service but they just tight the all screws. What you think, what is the actual problem of vibration around 40 to 50 km/h speed. Is this a problem of clutch shoe, Variator, rollers or something else? What is the solution? Please help me.

Thanks bro .. This help me a lot ...hey using a hammer to push the clutch ...was a good idea for me ....try it for someone who has a problem squeezing... OK....thank again...rmm

i'm glad I saw your other video because this is going to help me a lot. thanks

Could all these bolts be replaced with stud and bolts like on the exhaust manifold?

LOL. I wear my flip-flops to do EVERYTHING! I live right on the ocean. I hate wearing sneakers/shoes. All they do is create smelly feet and toenail fungus from a lack of ventilation. I have climbed mountains in flip-flops. I'm very proficient with them. Thanks for watching!

How do you put it back on

Do I want the heavy duty 2000RPM springs on our offroad cart? How do I tell if the belt is worn?

Hi finding your videos really useful as i have purchased a used scooter! what should i check if my scooter has vibes/judder when i start rolling, initially it vibrates and as the scooter gains momentum it becomes smooth.

Gostei muito

Thank you for the video! It's very concise and understandable, I have been wanting to do some mods to my scooter and your video has given me the information I needed to do the clutch spring mod. Do you have any advice on what springs to use? or perhaps the end results for different RPM rated springs? for example: Greater speed as opposed to off the line acceleration? Thanks again for sharing your knowledge and skills.

Hi there, really helpful video. I have an off road buggy which has a gy6, the drive belt has snapped and shredded many times, I have bought spare ones now but I'm not sure why it keeps on snapping. I am in the process of taking the clutch off to inspect it but I was wondering if this is a common problem with gy6 clutches and if anyone has any suggestions. Thanks

I suggest you remove the back wheel and inspect the brake shoes/springs.

It ended at disassembling the clutch. What happened to the re-assembly? And what springs(Yellow, Blue, Red) and why those were used. 1500RPM YELLOW Torque Spring combined with Blue 1000RPM clutch springs is what I like. BTW,.. there is no such part called the Variator Spring, it is called the Torque Spring.

Have you ever considered lubricating the shaft with antiseize before installing to prolong life? not much or it could get on the belt and make it slip just a little antiseize on the spring shaft so it continues to function?

Hey electronisNmore I have a peace sport 150 cc scooter a screw fell out that held In gear oil. I didn't notice till to late and one day it started making a lot of noise back end area and as I was trying to get it home it just stopped going. Small pieces of metal fall out now from the clutch assembly. My question is that didn't mess up my engine it and after I replace the whole clutch and gear stuff back there where do I add the gear oil at and what is the gear oil for?

I tried taking off my belt like this video and the other CV belt removal by squeezing clutch assembly. I can't get the belt pushed down all the way and I am wondering if it is faulty? I am also noticing the rear tire doesn't spin freely when on the center kick stand and when I try to push the scooter when not running it is very difficult. Another sign the clutch is bad?

I replace the engine and transmission on my scooter 2 years ago have not rode it much. The rod bearing worn in the old. Question about the crankshaft? I am planning on building another 150cc with a few mods and the stock crankshafts are pressed. Is there a way to get them so the rod bearings are not pressed?

So the clutch I suspose to come in when you squeeze it, mine won't, Zuma 125!

yea....the valve clearance was adjusted at the 1500 mile checkup. it just feels like there is more in there

Will this clutch GY6 125 will it work for a Yamaha Vino 125 ?

hey great video your channel is extremely helpful. but, I have a question for you when my 50cc gy6 scooter idles the clutch bangs back and forth and shakes the whole bike. Any idea why that is moving back and forth left to right while idling ?

So if I had a new full clutch assembly, would I just slide the old one off and new on? Or do springs need to be installed on new clutch assembly?

I striped something with the kickstarter that even the electric start won't catch now. Any idea what it could be?

Nice videos, my gy6 is bogging on wot and I can't figure out why. Any suggestions?

Is this the same for a 50cc gy6. I've bought some 1500rpm clutch springs and a 1500rpm torque spring that i want to install.

electronicsNmore - Thanks for the great tips! I was wondering (I'm a novice, so please excuse the stupid question) does jour 1500rpm springs give you a higher top speed? I'm busing rebuilding a Johnway 125cc.

I saw you having a problem when opening and closing the part where the belt is. I'm having the same problem and my belt keeps breaking and I think that's why the belt is breaking. What should I change the big spring or?

how would i put it back together? do it just press the spring back into place or does it have to be done professionally?

What size is the clutch nut? I heard it was quite large. Just want to know what size socket to purchase before starting the job. A friend of mine wasn't able to remove it with his pliers so I want to use an impact. Thanks

Works great nothing gets bent or anything. Oh look it's warped and bent.

What size is your belt? Just pulled the cover off my Znen 150T and the belt was completely shredded beyond recognition. Trying to order a replacement belt and not sure what size to choose. Thanks for the video, very helpful.

Those fins are not sharp. If you do it carefully, position the belt properly, and make sure the belt is ALL THE WAY DOWN in the clutch pulley, you will have no problems at all. I have done is many times before with zero damage to the belt. I have the same exact kevlar belt.

My kids just bought a slightly used on that is an 08 go cart 150 but same motor. My clutch keeps popping and resetting if I floor it or go up a steeper hill. Can I call you or u call me so I can figure out the problem since I trust your experience you have shown on youtube?

do you have a video about my problem so l can watch it and understand better thank you so much on replying to my question so soon.

Great video! I'm having clutch area noise and bogging down at certain speed. Have you this this type of problem with this CVT? I've already been through carb and ignition troubleshooting. Thanks!

Is there any gasket between the engine and the clutch cover ?

coud you explaint te me what locktide is?

It is better to use an impact wrench or use the special tool to dismantle the clutch assembly

where's the best place to order the clutch assembly for cheaper then your local parts store?

Perhaps if you share your experience the first time you removed the nut of the clutch then that would help because that nut is flipping hard to get off. Trying to find the best alternative before I buy the tool removal for the clutch bolt. Or is it only tight when lock tight is applied? I don't think mine's been removed before since I only had the drive belt replaced. So I'm guessing the clutch has never has touched. I have a 2006 model so more than 10yrs old but it doesn't look rusted. Overall, I like the idea of using a bigger wrench and the clamps to hold it down. I'm going to try that way if I can get the bolt off first lol. So is the clutch the only reason to cause a jump aggressively offline or trying to take off? My scooter done almost 38,000kms and haven't changed the clutch yet.

Hello friend. Good job. Please can you tell me if i cut some of the spring, after that can I put it again with no problem? I mean can I put back STRAIGHT and all the clutch works properly? Thanks. Kostas.

hey bro I love your vids very good instruction. I have a roketa 150cc and am tricking it out I.E new racing clutch 1500rpm springs, new variator with 14 g rollers, and I am wondering about what you call that part that was faulty in this video? I would like to get a spare just for when I do encounter this problem. Its not the clutch it is those two disks that hold the belt . WTF is that part of the clutch called lol! thanks, and you are awesome for actually replying to people scoot on bro!

I think I need a belt. my bike back tire will not spin when I pull my throttle. can someone tell me what's the issue

Hello, I need help with my scooter Keeway Silverblade 125, i bought it two months ago, and i drove on it maybe 300km when something went wrong. When scooter was working properly it could get to 9000RPM, but now around 6000RPM it looses power and something starts squeeling from variator. I tried to replace rollers in variator, i replaced springs in clutch and "big" spring but all it did is that it doenst squeel so much. But the main problem is still there when i hit 6000RPM i can´t accelerate anymore and i have to release gas, and when it drops down a little the scooter is again behaving fine until i hit 6000RPM. I am thankfull for any reply.

Thanks you¡ En Mèxico a ningùn Weeey se le ocurriò hacer un pinche video del clutch cuando a mi se me descompuso..,

nice informative video., and nice flip-flops lmao

For top top top top top top top

Hello, I've seen your video for diagnosing sounds from the engine, and I believe my clutch has gone bad. I have about 12k miles on my 125cc scooter, and when riding it yesterday it starting banging really hard once around 35 mph. I noticed after inspecting my wheel turns without throttle, and I have been getting a decrease in performance lately. In addition, where is the best place to buy parts from in your opinion?

gd am sr, do you have a wiring diagram for s8,150,if you don't mind may i ask for a copy of it. tnx in advance

how tight does the variator bolt go back on?

Steve from Annapolis take a rubber mallet tap the clutch bell all the way around and keep trying to squeeze it and the belt will come off repeat rubber mallet keep tapping it takuaches will snap loose got my voter like your show

i have a 150cc herritage scooter, while riding one night it stopped moving. bike was still running and throttled however no power to wheels...what can this be? please help

Use blue lock tight and you wont have to use the heat. Red not meant to be taken off on a regler basis, blue is..

May i send you a GY6 manual? I wish to confirm that it is authentic. It could be "incomplete" as I downloaded it. I want to use it and am worried to do so. Thanks.

U're using 1500 rpm springs ins clutch and counter pressure spring. Which roller size and weight do you have?

Hello I have 2005 HYOSUNG SD 50 GALLERY WORKS BUT NOT MOVING CAN I GET HELP , THNX

Does removing the kick start gears really make scooter faster? On mine, previous owner removed it...

When I start my scooter it seems it is in gear. I have to start it with it up on the kick stand. It will not idle. Is that the clutch?

what's c-clamp size? 6"??

nice video, can you help me with my kymco super 8 scooter 125, my belt broke and i replaced it with new one already (genuine kymco belt). I started using the scooter and when im in full stop and twist the throttle slowly, it started to accelerate but with shaking/juddering and then it feels like someone kick my scooter at the rear, as it starts to run.fast, my scooter is normal. but when I stop.(e.g in stoplight) it starts all over again (shaking/juddering thing before it runs normal again at higher speed). my question is,,, do I need to replace the whole clutch thing, or is there only part of the Clutch that need to be replaced? do I need to disassemble the clutch assembly (like what you did on your vid) an clean it parts by parts? your suggestions will surely help me. thanks

Oh man, I can't loose the nut which hold the big variator spring. It holds like hell. And I can not find 38mm socekt for my impact wrench....

l watch you video first then took my belt cover off l notice. there was some oil in there. l though that area was suppose to be clean and dry where would the oil be coming have any idea

Having a problem getting my casing off took all the bolts off and for some reason it is being held on where the bar where the kick start is..... weird!!

No need to. You can do it if you want. LOL What you do not seem to understand is the reason why it seemed difficult to remove, was because the clutch was DAMAGED and would not open fully. Ordinarily it would come off much easier. You have to be crazy to remove the variator fan just to change the belt.

I get a grinding sound coming from the kick starter when the engine is running. Any clues on what to do?

When will people that teach you there short cut ways they think is easy or cheaper or both going to Please Teach us the right way or ways safety is my priority but the amount of money it cost is always number ONE.

" G "-----💯💯💯💯💯🔥🔥🔥🔥🔥💪🏿💪🏿💪🏿💪🏿💪🏿🎱🎱🎱🎱🎱🎥🎥🎥🎥🎥💰💰💰💰💰 !!!!! " ICON$ " !!!!!

Great video but could have been done in half the time. At least a little editing haha but other tham being nitpicky this is great.

4.37. Use a 3 legged puller. Under a tenner. Easy job.

from iraq

Some things you say sound just like Ferris Bueller.

My Shenke js 250 gy6 scooter, judders a bit on start off, it has a small lightvsudecar fitted, its only done 3008 ks , I remember mt old suzuki 250 burgman doing sinmilar prob the belt or somehing galzed like clurthc anyone know, please, chris , Tasmania

Mi volt a probléma? Miért kellett javítani?

You didnt tell me that before lol

An impact wrench and cheap Ebay impact bits would have done basically everything here. Mine was $60 for a Kawasaki brand impact wrench and twenty bucks for the bits that would have done everything here (10mm-29mm, 39mm one for the clutch). Seriously people, don't buy the bike if you can't buy the tools.

Improper tools leads to damage eventually.

..... centrifugal......