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Troubleshooting
71
3. Loose or broken engine mount(s): Ask a
Yamaha dealer to inspect.
V-belt slips or becomes extremely hot
1. Oily or dirty V-belt or primary and second-
ary sheave assembly surfaces: Clean.
2. Problem with the driveline: See “V-belt
twists” above.
Engine does not upshift or downshift
properly or engages harshly
1. Worn or damaged V-belt: Replace the V-
belt or ask a Yamaha dealer to inspect.
2. Incorrect V-belt clutch settings for altitude
or conditions: Ask a Yamaha dealer to in-
spect.
3. Worn or sticking primary sheave assem-
bly: Ask a Yamaha dealer to inspect.
4. Worn or sticking secondary sheave as-
sembly: Ask a Yamaha dealer to inspect.
Noise or excessive vibration in drive
chain and sprockets
1. Broken V-belt clutch components: Ask a
Yamaha dealer to inspect.
2. Worn or damaged bearings: Ask a
Yamaha dealer to inspect.
3. Worn or damaged V-belt with flat spots:
Replace.
4. Worn or damaged idler wheels or shafts:
Ask a Yamaha dealer to inspect.
5. Worn or damaged drive track: Ask a
Yamaha dealer to inspect.
U8GL10E0.book Page 71 Friday, May 18, 2007 3:17 PM