Spark Plug Inspection
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.
To inspect the spark plugs, do the following:
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Lift the cargo box to access the spark plugs.
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Remove the spark plug cap. Using the spark plug wrench provided in the tool kit, remove the plug by rotating it counter-clockwise.
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Reverse the procedure for spark plug installation.
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Torque to specification.