Polaris FST Touring - Manual (Page 139)

136
TROUBLESHOOTING
Engine and Drive Train Troubleshooting
Engine Runs Irregularly, Stops or Loses Power
Possible Cause Solution
Engine Management System RPM
Reduction Mode is activated
See causes on page 34.
Low battery voltage Recharge the battery to 12.8 VDC.
Water is present in fuel See your dealer.
Poor quality or low octane fuel Replace with fresh recommended fuel.
Loose ignition connections Check all connections and tighten.
Incorrect spark plug gap or heat range Set gap to specs or replace plug.
Fouled or defective spark plug Inspect, clean and/or replace spark plug.
Kinked or plugged fuel vent line Inspect and replace.
Clogged air filter Inspect and clean or replace.
Air flow through intake is too warm (FST
only)
Boost is limited until cooler air flows
through the intake.
Engine management system failure See your dealer.
Engine overheating See the “Engine Overheating” trouble-
shooting section.
Fuel in crankcase See your dealer.
Drive clutch binding See your dealer.
Incorrect clutching See your dealer.
Driven clutch malfunction See your dealer.
Worn drive belt Replace with the recommended belt.
Excessive belt/sheave clearance See your dealer.
Loose torque stop Inspect and adjust.
Other mechanical failure See your dealer.
Engine Overheating
Possible Cause Solution
Low snow conditions Drive into snow frequently. See page 20.
Low coolant Check the coolant level. See page 106.
Check for leaks. Bleed the system if the
coolant level is extremely low.
Restricted air flow to radiator Clean snow and debris from the radiator.