2009 Yamaha Motorsports FX Nytro MTX Owners Manual - Page 79

2009 Yamaha Motorsports FX Nytro MTX Manual

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Troubleshooting 2. Drive track does not move: Foreign object is caught in the drive track, or slide runners have melted to the slide metal due to lack of lubrication. Tight, loose, or broken drive chain: Ask a Yamaha dealer to inspect. Improper V-belt: Replace with the correct V-belt. Incorrect V-belt clutch offset: Ask a Yamaha dealer to inspect. Loose or broken engine mount(s): Ask a Yamaha dealer to inspect. Oily or dirty V-belt or primary and secondary sheave assembly surfaces: Clean. Problem with the driveline: See "V-belt twists" above. 3. V-belt twists 1. 2. 3. V-belt slips or becomes extremely hot 1. 2. Engine does not upshift or downshift properly or engages harshly 1. 2. Worn or damaged V-belt: Replace the Vbelt or ask a Yamaha dealer to inspect. Incorrect V-belt clutch settings for altitude or conditions: Ask a Yamaha dealer to inspect. Worn or sticking primary sheave assembly: Ask a Yamaha dealer to inspect. Worn or sticking secondary sheave assembly: Ask a Yamaha dealer to inspect. 3. 4. Noise or excessive vibration in drive chain and sprockets 1. 2. 3. 4. 5. Broken V-belt clutch components: Ask a Yamaha dealer to inspect. Worn or damaged bearings: Ask a Yamaha dealer to inspect. Worn or damaged V-belt with flat spots: Replace. Worn or damaged idler wheels or shafts: Ask a Yamaha dealer to inspect. Worn or damaged drive track: Ask a Yamaha dealer to inspect. 73

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Troubleshooting
73
2.
Drive track does not move: Foreign ob-
ject is caught in the drive track, or slide
runners have melted to the slide metal
due to lack of lubrication.
3.
Tight, loose, or broken drive chain: Ask a
Yamaha dealer to inspect.
V-belt twists
1.
Improper V-belt: Replace with the correct
V-belt.
2.
Incorrect V-belt clutch offset: Ask a
Yamaha dealer to inspect.
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.