Polaris 600 HO Switchback Offroad Vehicle User Manual


 
125
TROUBLESHOOTING
Engine Troubleshooting
Problem Probable Cause Solution
Engine turns but fails
to start
Faulty ignition Install new spark plug(s). If engine
still fails to start, check for spark. If
there's no spark, SEE YOUR
DEALER.
No fuel to engine Make sure the fuel valve is on.
Use the choke. See page 65.
Make sure the fuel tank contains
fuel.
Ice may be in the fuel line, filter or
pump. Add isopropyl alcohol to the
fuel system.
Poor engine com-
pression
Mixture is too lean. A main jet that
is too small will cause seizure result-
ing in loss of power. This indicates a
major engine problem that must be
repaired before operating. SEE
YOUR DEALER.
Engine lacks power Fouled or defective
spark plug(s)
Replace the plug(s).
Fuel filter (loss of
high RPM power)
SEE YOUR DEALER.
Incorrect clutching SEE YOUR DEALER.
Carburetor and fuel
pump
There is no adjustment to change
power output. SEE YOUR
DEALER.
Engine continually
backfires
Faulty plug(s) Change plug(s).
Carburetor / Fuel
System
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).
Incorrect throttle
freeplay or faulty
switch
SEE YOUR DEALER.
Engine requires
more than normal
pulls to start
Poor fuel Replace with fresh winter fuel.
Not enough fuel get-
ting to engine
SEE YOUR DEALER.
Engine backfires but
fails to start
Spark plug wires
may be on wrong
cylinder
Reinstall spark plug wires to the cor-
responding cylinder.