2006 Polaris Sawtooth Owners Manual - Page 81

2006 Polaris Sawtooth Manual

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MAINTENANCE AND LUBRICATION Spark Plugs Refer to the specifications section beginning on page 100 for spark plug and gap specifications. 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 plug 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 white. A white insulator tip indicates overheating, caused by use of an improper spark plug or incorrect carburetion adjustments. 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 injection oil, improper use of the choke, or incorrect carburetion adjustments. Spark Plug Removal and Replacement 1. Remove the spark plug cap (A). 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. Torque to 14 ft. lbs. (19 Nm). 78 A

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A
78
MAINTENANCE AND LUBRICATION
Spark Plugs
Refer to the specifications section beginning on page 100 for spark plug
and gap specifications.
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 plug 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 white. A white insulator tip indicates
overheating, caused by use of an improper spark plug or
incorrect carburetion adjustments.
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 injection oil, improper use of the choke, or
incorrect carburetion adjustments.
Spark Plug Removal and Replacement
1.
Remove the spark plug cap (A).
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.
Torque to 14 ft. lbs. (19 Nm).