Polaris 450 S Offroad Vehicle User Manual

Spark Plugs
Refer to the specifications section beginning on page 182 for recommended spark plug type
and gap.
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.
Using non-recommended spark plugs may result in serious engine damage and may void your
emission-related warranty. Always use Polaris-recommended spark plugs.
A hot exhaust system and engine can cause serious burns. Wear protective gloves when removing
a spark plug for inspection. Allow components to cool before continuing.