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Discussion Starter · #1 ·
Dear,
My friend is having trouble with his motorcycle which at high rev(>11500), the belt comes off. He is a great rider and I was hoping to help him since he almost always has this belt issue.
Please kindly advise what can be causing this and what are the proposed solutions.
Thanks and best regards,
Senvy
 

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Discussion Starter · #2 ·
The motorcycle has a chain and only one drive belt. The drive belt is equipped with a starter launcher. At revs higher than 11000, the belt tends to come off, thus my friend cannot go full power fearing that the latter will come off.
Please kindly advise, thanks all.
 

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There should be some type of belt guard to keep it in place either on the pulley or separate.

Make sure the belt tension is correct. there could be some type of adjustment. If there is no adjustment, and the belt guard/pulleys are in good shape, the belt may simply be too worn and needs replacement.
 
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