Polaris 450 MXR Offroad Vehicle User Manual


 
122
Maintenance
Spark Plugs
Refer to the specifications section beginning on page 168 for recommended spark plug type
and gap.
NOTICE: Using non-recommended spark plugs can result in serious engine damage. Always use
Polaris-recommended spark plugs.
Spark plug condition is indicative of engine operation. The spark
plug firing end condition should be read after the engine has been
warmed up and the vehicle has been driven at higher speeds.
Immediately check the spark plug for correct color.
1. Access the spark plug at the right side of the engine.
2. Using the spark plug socket and a wrench, rotate counter-
clockwise to remove the spark plug.
CAUTION! A hot exhaust system and engine can cause burns. Wear
protective gloves when removing a spark plug for inspection.
3. After reinstalling the spark plug, torque to 14 ft. lbs. (19 Nm).
Spark
Plug