Must I Change belt and assy track?

[antoleon]

hello, is the belt to be changed? and the assy track?
Post photo at link:

Motoslitta - Google Drive

drive.google.com

 

[RobX-1]

Track appears to just be dirty and didn't see any torn lugs or any track delamination so unless wanting to run a shorter lug, it should be fine. As for the belt, per Yamaha's specs, you measure the outer width of the belt and as long as it measures more than 32.5mm, it is within the wear limit. A new Yamaha belt will mearsure 34.1mm and 32.5mm is the wear limit. Unless the belt is starting to delaminate or there are other obvious signs of wear, I always go by the wear limit as to when to replace the belt.

 

[MrSled]

There was as few missing lug on that one picture but still not bad enough to change the track.