the CVT transmission By rcarter227 (Read 533 times)

[rcarter227]

Forum Friends,

Scooter Information:
MFR: TAIZHOU CHUANL Motorcycle Mfg Co., LTD
Engine Famil: CCHMCO
Wheel: 13 inch
Model: 2012 LB150T-12
Serial #: TCKPMYB1000881

I purchased a brand new 150cc Chinese Scooter and after only 211 miles my CVT belt shredded. I ordered two new ones and changed the belt myself. I believe the CVT transmission is not going to low gear because now it does no accelerate from a stopped position like it did when I first got it, it does though go much faster overall than it did before (I am thinking that is because of the new better belt?).

Can anyone provide me directions on how to make sure the CVT transmission is going all the way to the lowest gear in a stopped position?

Thanks in advance for any input anyone may have.

[xing150]

Do a search here for the variator and should find some helpful procedures to diagnose.

[carefulrider]

Thanks to the folks on the forums, this is what I have learned from reading their posts:

You shall need to remove the belt cover again. Occasionally material from the 1st belt will wedge itself in the clutch in the back. Check & see if any strands have wrapped themselves in there. That would cause the clutch to malfunction. Black debris & dust must be cleaned out thoroughly before a new belt can be installed. Dbl check that both the variator pulley & rear clutch pulley are free from debris or pieces from the worn belt.

Check the rear clutch pulley for smooth operation. Take both of your hands & grasp the pulley. Make sure that the pulley can move freely when compressing the pulley with your fingers.

Then start the motor & let it idle. The belt should be riding on the bottom of the variator sheaves. If it is not, check that the roller weights are not stuck & that they are able to move freely up & down in their 'tracks'.
If the belt is deep in the clutch at idle then the variator is probably jammed.

In either case, use graphite as a dry lubricant. Just a HB pencil is excellent. Use a pencil & "color in" all the surfaces of the rollers, sliders & parts of the variator that are in contact with the rollers, etc.
Fit the rollers with any flat spots facing away from the rubbing surfaces.

Rev the motor a little to make sure that everything is working. With the motor on high revs, the belt should be riding on the top of the variator sheaves. Then, when you release the throttle, the belt should return to riding at the bottom of the variator sheaves.

Keep in mind that your riding habits affect the life of the belt. Typically belts can last from 2-8k mi with normal usage.

[rsw1158]

I agree with carefulrider. Take your clutch apart and remove the debris and clean it. Sounds like all problems are there.