Troubleshooting, Engine troubleshooting – Polaris 2016 600 Switchback Assault 144 User Manual
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TROUBLESHOOTING
Engine Troubleshooting
Unless you have experience and training in two-cycle engine repair, see
your dealer if technical problems arise.
Problem
Probable Cause
Solution
Erratic engine
operating RPM
during acceleration
or load variations
Drive clutch binding
• SEE YOUR DEALER.
Driven clutch
malfunction
• SEE YOUR DEALER.
Harsh drive clutch
engagement
Drive belt worn or
too narrow
• Replace the drive belt.
Excessive belt/
sheave clearance
• SEE YOUR DEALER.
Drive belt turns over
Wrong belt for
application
• Replace the drive belt.
Clutch alignment out
of spec
• SEE YOUR DEALER.
Engine mount
broken or loose
• Inspect and replace. SEE YOUR
DEALER.
Machine fails to
move
Clutch jammed
• Check for twisted belt or broken
spring. SEE YOUR DEALER.
Track jammed
• Foreign object may be caught or the
rail slide melted to the track clips
due to lack of lubrication.
• Track may be iced up or frozen to
the ground.
Chaincase sprocket
or chain jammed or
broken
• Chain is loose or broken or chain
tightener is loose. SEE YOUR
DEALER.
Noise in drive
system
Broken drive clutch
components
• SEE YOUR DEALER.
Bearing failure/
chaincase, jackshaft,
or front
• SEE YOUR DEALER.
Drive belt surface
flat spots
• Inspect and replace as needed.
Drive chain loose
• Inspect and adjust (or replace).
Drive chain worn,
sprocket teeth
broken
• SEE YOUR DEALER.
Poor low RPM
performance
Worn drive belt
• Inspect and replace as needed.
Excessive belt/
sheave clearance
• SEE YOUR DEALER.
Sticky clutch
• SEE YOUR DEALER.
Poor fuel quality
• Use 87-91 octane fuel (or higher).