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NOTICE
Spark plug condition is indicative of engine operation. The spark plug firing end condition should be
read after the engine is warmed up and the vehicle is driven at higher speeds. Immediately check the
spark plug for correct color. Using non-recommended spark plugs can result in serious engine
damage. Always use POLARIS-recommended spark plugs or their equivalent.
WARNING
A hot exhaust system and engine can cause burns. Wear protective gloves when removing a spark
plug for inspection.
SPARK PLUG CONDITION
Normal Plug
The normal insulator tip is gray, tan or light brown. There will be few combustion deposits. The
electrodes are not burned or eroded. This indicates the proper type and heat range for the engine and
the service.
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MAINTENANCE
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