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Maintenance, Spark plugs – Polaris 600 IQ Touring User Manual

Page 96

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93

MAINTENANCE

Spark Plugs

Normal Spark 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.

Tip: The tip should not be white. A white insulator tip indicates overheating,

caused by use of an improper spark plug or incorrect carburetor/throttle

body adjustments.

Wet Fouled Spark 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 or

use of non-recommended injection oil.

Spark Plug Removal and Replacement

1. Remove the spark plug cap.
2. Using the special wrench provided in the tool pouch, rotate the

spark plug counterclockwise to remove.

3. Reverse the procedure for spark plug installation.
4. Torque to 18-22 ft. lbs. (24-30 Nm).
5. Reinstall the spark plug cap.