Polaris 2002 Snowmobile Owner's Manual page 166

TROUBLESHOOTING
Engine Troubleshooting
CAUTION: Unless you have experience and training in two-cycle
engine repair, see your dealer if technical problems arise.
Problem
Erratic engine
operating RPM
during accelera-
tion or load
variations
Harsh drive
clutch
engagement
Drive belt turns
over
Machine fails to
move
164
Probable Cause
Drive clutch bind-
ing
Driven clutch
malfunction
Drive belt worn or
too narrow
Excessive belt/
sheave clearance
Wrong belt for
application
Clutch alignment
out of spec
Engine mount bro-
ken or loose
Transmission in
neutral
Clutch jammed
Track jammed
Chaincase sprocket
or chain jammed or
broken
Solution
-Disassemble drive clutch to inspect shift
weights for wear and free operation. SEE
YOUR DEALER.
-Clean and polish stationary shaft hub.
-Replace ramp buttons and rollers. SEE
YOUR DEALER.
-Inspect movable sheaves for excessive bush-
ing clearance and replace if necessary. SEE
YOUR DEALER.
-Replace drive belt.
-SEE YOUR DEALER.
-Replace drive belt.
-Adjust alignment offset.
-Inspect and adjust or replace. SEE YOUR
DEALER.
-Shift out of neutral.
-Belt twisted, spring broken, weights stuck,
lubricated. SEE YOUR DEALER.
-Foreign object caught or Hi-fax melted to
track clips due to lack of lubrication.
-Machine may be frozen to ground. Track
may be iced up.
-Chain is loose or broken, chain tightener is
loose. SEE YOUR DEALER.