89
MAINTENANCE AND LUBRICATION
Spark Plugs
S Use RC7YC spark plugs.
S Proper electrode gap is .035″ (.90 mm).
S Spark plug torque is 18 ft. lbs. (24 Nm).
CAUTION
Using non-recommended spark plugs can result in serious engine
damage. Always use Polaris-recommended spark plugs.
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 plugs for correct color.
WARNING
A hot exhaust system and engine can cause serious burns. Wear
protective gloves when removing a spark plug for inspection.
1. Normal
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 flaky and white. A white insulator tip
indicates overheating, caused by use of an improper spark
plug or incorrect fuel.
2. Wet Fouled
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 oil or incorrect throttle body adjustments.
Spark Plug Removal and Replacement
1. Rotate the spark plug cap 1/4 turn and pull to remove it.
2. Using t he special wrench provided in the tool pouch, rotate the
spark plug counterclockwise to remove.
3. Reverse the procedure for spark plug installation. Torque to 18 ft.
lbs. (24 Nm).
To Next Page
General
