Polaris Frontier Owner's Manual page 120

TROUBLESHOOTING
Engine Troubleshooting
Problem
Engine turns
but fails to start
Engine lacks
power
Engine
continually
backfires
Engine crank
time has
increased
118
Probable Cause
Faulty ignition
No fuel to engine
Air in fuel line
Poor engine
compression
Fuel filter (loss of
high RPM power)
Incorrect clutching
Fuel pump
Faulty plug(s)
Improperly set TPS
Poor gasoline or
not enough fuel
getting to engine
Solution
-Check for spark; if no spark SEE DEALER.
-Check tank level and fill with correct fuel.
-Ice in fuel line, filter, or pump.
-SEE DEALER for fuel line bleeding.
-SEE DEALER. This indicates a major en-
gine problem that must be repaired before
engine is run.
-SEE DEALER.
-SEE DEALER.
-There's no adjustment to change power out-
put. SEE DEALER.
-Change plug(s)
-SEE DEALER.
-Replace with fresh winter fuel.