Polaris 400 H.O. Offroad Vehicle User Manual


 
98
MAINTENANCE
Spark Plugs
Spark Plug Recommendations
Refer to the specifications section beginning on page 126 for the recom-
mended spark plug type and gap for your vehicle. Torque spark plugs to
specification.
Spark Plug Inspection
Spark plug condition is indicative of engine operation. Check the spark
plug firing end condition after the engine has been warmed up and the
vehicle has been driven at higher speeds. Immediately check the spark
plug for correct color. See page 99.
1. Remove the seat. Remove the right side panel.
2. Remove the fuel tank cover.
3. Rotate the spark plug cap 1/4 turn and pull it off the spark plug. If
necessary, use a needle-nose pliers to assist.
4. Using a 5/8" socket with a long extension, access the spark plug
through the fuel tank cover opening. Rotate the spark plug
counterclockwise to remove it.
5. Reverse the procedure for spark plug installation. Torque to
specification.
CAUTION
Using non-recommended spark plugs can result in serious engine damage.
Always use Polaris-recommended spark plugs.
Plug Condition Torque Specification
New Spark Plug 9-11 ft. lbs. (12-15 Nm)
Previously Installed Spark Plug 17-20 ft. lbs. (23-27 Nm)
WARNING
A hot exhaust system and engine can cause serious burns. Wear protective
gloves when removing a spark plug for inspection.