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Post by dickyh on Feb 1, 2017 18:54:52 GMT -5
on my way home, stopped at a light and while at idle scoot is pulling forward. I suspected worn roller weights (using dr pulley variator and weights). opened CVT and inspected... variator mechanics look fine - one roller has a slight groove in it but not bad. Rollers are about 1yr old. Could this be the issue or something else?
What do I look for?
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Post by crawford on Feb 1, 2017 20:51:13 GMT -5
check for a vacuum leak like cracked in hose or carb loose on mounting
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Post by tortoise on Feb 1, 2017 22:53:19 GMT -5
Year, brand, model?
Sometimes the large clutch nut will loosen and contact the inner bell surface.
A clutch bearing may be deficient resulting in excessive drag.
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Post by onewheeldrive on Feb 1, 2017 23:51:37 GMT -5
It could also be a broken clutch pad that is engaging the clutch.
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Post by dickyh on Feb 2, 2017 7:05:30 GMT -5
idle is not an issue is at 1560rpm as it always has been, as i have fuel injection. so I've ruled out leaks. Inspected clutch and all seems fine. I had this happen about a year ago and it was a roller that had flipped so i assumed the same. will put new rollers in and see if it corrects the problem.
This is a 2014 150cc qmj157 engine if it helps
do rollers actually wear out? in other words should they be replaced on a set schedule? miles-months?
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Post by tortoise on Feb 2, 2017 12:41:07 GMT -5
Was an aftermarket fuel injection system installed? Original 150cc GY6 fuel injected models are somewhat rare . . example. |
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Post by dickyh on Feb 2, 2017 13:53:12 GMT -5
aftermarket fuel injection
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Post by onewheeldrive on Feb 2, 2017 16:07:45 GMT -5
This is a 2014 150cc qmj157 engine if it helps do rollers actually wear out? in other words should they be replaced on a set schedule? miles-months? Yeah they get major flat spots after awhile. It'll effect performace a little bit. I tend to change mine once, more like twice a year on average-- like early spring and mid-summer. I put quite a few miles on my small engine per year. Rollers are fairly cheap anyway. I also keep a close eye on the "v" gudes that slip onto the variator back plate-- once they crack and break, there will be metal to metal contact within the variator and that will cause performance issues and will trash your variator in the long run. |
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Post by johnathonkreider on Feb 5, 2017 18:44:57 GMT -5
This might be something you've thought of before, but I had this problem once before, and it was because I has adjusted the part of the car that that attached to the throttle cable to be too tight. This meant that I got to much fuel, which made my idling scooter try to move forward.
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