Polaris 600 Switchback Assault Owner's Manual page 117

Engine Troubleshooting
Problem
Engine turns but fails
to start
Engine lacks power
Engine continually
backfires
Engine requires
more than normal
pulls to start
Probable Cause Solution
Faulty ignition
No fuel to engine
Poor engine com-
pression
Fouled or defective
spark plug(s)
Fuel filter (loss of
high RPM power)
Plugged fuel filter or
tank pick-up sock
Incorrect clutching
Faulty plug(s)
Fuel System
Incorrect throttle
freeplay or faulty
switch
Poor fuel
Not enough fuel get-
ting to engine
Plugged fuel filter or
tank pick-up sock
TROUBLESHOOTING
• Install new spark plug(s). If engine
still fails to start, check for spark. If
there's no spark, SEE YOUR
DEALER.
• Make sure the fuel valve is on.
• Make sure tank contains fuel.
• Ice may be in the fuel line, filter or
pump. Add isopropyl alcohol to the
fuel system.
• SEE YOUR DEALER.
• This indicates a major engine prob-
lem that must be repaired before
operating. SEE YOUR DEALER.
• Replace the plug(s).
• SEE YOUR DEALER.
• SEE YOUR DEALER.
• SEE YOUR DEALER.
• Change plug(s).
• Dirt or ice may be in the fuel system
(deicer should be added to non-etha-
nol fuel at all times for assurance
against fuel line icing).
• SEE YOUR DEALER.
• Replace with fresh winter fuel.
• SEE YOUR DEALER.
• SEE YOUR DEALER.
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