YY250T vibrate badly By daviddahan (Read 418 times)

[daviddahan]

Hi Forum,

I have a YY250T 2012 with about 800 miles on it.
Recently I noticed the following: after driving for a few miles and engine is hot, every time after I stop (traffic light or stop sign) when twisting the throttle feels like the engine is vibrating badly. if I play with the throttle a bit I can get over it and then it rides fine.

when engine is cold I don't have that problem.

I have the scooter at the shop and it's been there for a while and they can't figure out the issue.

Any idea? suggestions?

Thanks,

David

[carefulrider]

I had a similar condition on my scoot. However, the vibrating/shuddering occurred even with the engine cold.

While I had the CVT belt cover off, I removed the clutch drum or bell, & emery cloth sanded the entire inside of the bell.

The clutch pads could be glazed a little or the clutch bell could be slightly warped. Sanding the pads can help too.

On occasion, if a scoot is abused, the clutch bell turns blue from the heat. Hope this helps.