Polaris 2005 Fusion 900 Owner's Manual And Maintenance Information page 115

TROUBLESHOOTING
Engine Troubleshooting
Problem Probable Cause Solution
Engine turns
Faulty ignition
but fails to start
No fuel to engine
Poor engine
compression
Engine lacks
Fouled or defective
power power
spark plug
Fuel filter (loss of
high RPM power)
Incorrect clutching
Engine g
Faulty plug(s)
continually i ll
Fuel System
backfires
Incorrect throttle free-
play or faulty switch
Engine requires Poor gasoline or not
more than enough fuel getting to
normal pulls to engine
start
Engine back- Spark plug wires may
fires but fails to be on wrong cylinder
start
112
S Install new spark plug(s). If engine still
fails to start, check for spark. If there's
no spark, SEE YOUR DEALER.
S Check the fuel tank level and fill with
correct fuel.
S Ice may be in the fuel line, filter or
pump. Add isopropyl alcohol to the
fuel system.
S Mixture is too lean. This indicates a ma-
jor engine problem that must be repaired
before the engine is run. SEE YOUR
DEALER.
S Replace the plug.
S SEE YOUR DEALER.
S SEE YOUR DEALER.
S Change plug(s).
S Dirt or ice may be in the fuel system
(deicer should be added to non-ethanol
fuel at all times for assurance against
fuel line icing).
S SEE YOUR DEALER
S Replace with fresh winter fuel.
S Reinstall spark plug wires to the corre-
sponding cylinder.