Yamaha VK PROFESSIONAL-II 2016 Owner's Manual page 85

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