MAINTENANCE
Spark Plugs
Spark Plug Removal and Replacement
1. Remove the cargo box | Spark Plugs | |
access panel. | ||
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2.Clean the area around the spark plugs before remov- ing the plugs.
3.Remove the spark plug caps.
4.Using the spark plug wrench provided in the tool kit, remove the plugs by rotating them counter- clockwise.
5.Reverse the procedure for spark plug installation. Torque to specification. See page 84.
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.
Tip: The tip should not be white. A white insulator tip indicates overheating, caused by use of an improper spark plug or incorrect throttle body adjust- ments.
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. Fouling may be caused by excessive oil or by frequent short trips, especially in cold weather.
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