Join Date: Dec 2009
Location: central mississippi 39180
well the CVT clutch setup has many querks about it. i read thru the other posts you made, and have tried to understand what exactly happened and what might be your problem.
--when you rolled down the hill backwards, you were still in drive, and you pressed the gas?? when you got down the hill to stop you instead of the brake? is that when it made the pop noise and/or screetch?
--when you put the bike inneutral it will crank and run fine, but you have to jam it in gear to get into each gear and it dies correct?
it sounds to me as if you had the bike in gear, and when it rolled backwards depending on the amount of speed you gained while rolling backwards could have caused two or three different scenarios i'll try to explain thiem
1) if you gained alot of momentum, enough for the clutch weights to start to spread the primary back open, with the bikerolling in reverse free-wheeling, it would have pread the secondary open and whenyou gave it gas to try and stop it, instantly threw the primary shut and snapped the secondary shut as well, most likely stretching the belt out, if not breaking the 3 plastic clutch shoes on the secondary
2) you could have overspun the one-way bearing. since you had the bike in forward, by letting the bike roll down hill backwards, and then hitting the gas, you forced the one-way bearing to instantly engage. the one-way bearing is the bearing on the crank that allows the engine to brake when rolling down hills in forward. with it free-wheeling inreverse, then instantly being applied when you touched the throttle could have broken the one-way bearing
3) well i dont really have a #3
with the bike wanting to lunge in drive, but run fine when in neutral usually means the belt is riding on the lower collar of the primary. when the belt rides on the lower collar in between the primary sheaves it puts pressure on the output shaft of the engine and trans and locks everything up. it makes it where you have to yank the sifter to get the bike in neutral. and the only way a belt rides down in the primary is if its worn below specs, or stretched out from some weird manuver like you did. so my bet is on the belt.
if you have the mechanical ability to take your clutch cover off, and inspect the drive clutches. if you can take a video and upload it an let me see it, and rev the bike up in eutral and let me see the belts full travel, i can probably diagnose the problem better