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SPARK PLUGS
SPARK PLUG RECOMMENDATIONS
Using non-recommended spark plugs can result in serious engine damage. A
spark plug with a heat range too high will always cause engine damage if the
engine is operated in conditions more severe than intended for that plug.
Always use the spark plugs recommended for your snowmobile.
A new engine can cause temporary spark plug fouling due to the lubricant added
during the assembly process. Avoid prolonged idle speeds, which cause plug
fouling and carbonization.
Refer to the Specifications chapter for the specific spark plug to be used in your
snowmobile.
Change the spark plugs at the intervals outlined in the Periodic Maintenance
section.
• Use recommended spark plugs with the proper gap. Refer to the
specifications section for the specific spark plug to be used in your
snowmobile.
• Use only resistor-type spark plugs.
• Torque spark plugs to specification.
• Always carry spare spark plugs.
SPARK PLUG INSPECTION
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.
A hot exhaust system and engine can cause burns. Wear protective gloves
1. Remove the left side panel and hood.
2. Remove the spark plug cap.
Spark Plug
18-22 ft-lbs (24-30 N·m)
when removing a spark plug for inspection.
NOTICE
TORQUE
WARNING
MAINTENANCE
141
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