2009 Polaris Ranger 6x6 700 EFI Owners Manual - Page 77

2009 Polaris Ranger 6x6 700 EFI Manual

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MAINTENANCE Spark Plugs 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. NOTE: The tip should not be white. A white insulator tip indicates overheating, caused by use of an improper spark plug or incorrect throttle body adjustments. Wet Fouled Plug The wet fouled insulator tip is black. A damp oil film covers the firing end. There may be a carbon layer over the entire nose. Generally, the electrodes are not worn. General causes of fouling are excessive oil, use of non-recommended injection oil or incorrect throttle body adjustments. Spark Plug Removal and Replacement 1. Remove the seat to access the engine compartment. 2. Remove the spark plug cap. Using the spark plug wrench provided in the tool kit, remove the plug by rotating it counterclockwise. 3. Reverse the procedure for spark plug installation. Torque to specification. See page 73. 74

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74
MAINTENANCE
Spark Plugs
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 indi-
cates the proper type and heat range for the engine and the service.
NOTE:
The tip should not be white. A white insulator tip indicates overheating,
caused by use of an improper spark plug or incorrect throttle body
adjustments.
Wet Fouled Plug
The wet fouled insulator tip is black. A damp oil film covers the firing
end. There may be a carbon layer over the entire nose. Generally, the
electrodes are not worn. General causes of fouling are excessive oil, use
of non-recommended injection oil or incorrect throttle body adjust-
ments.
Spark Plug Removal and Replacement
1.
Remove the seat to access the engine compartment.
2.
Remove the spark plug cap. Using the spark plug wrench provided
in the tool kit, remove the plug by rotating it counterclockwise.
3.
Reverse the procedure for spark plug installation. Torque to specifi-
cation. See page 73.