47
Before removing the spark plug, be
sure to clean the area around the
spark plug. If you do not, dirt could
enter engine when removing or
installing the spark plug.
Adjust the gap to 0.6-0.7 mm (0.024-
0.028 in.) for proper ignition. Use a
feeler gauge to check the gap.
When installing the spark plug, be
sure to tighten it securely. A new spark plug should be tightened 1/2 turn
once the washer contacts the cylinder head. A used spark plug should be
tightened 1/8 - 1/4 turn once the washer contacts the cylinder head.
Engine Idle RPM Adjustment
To properly adjust the idle, a tachometer is necessary. If one is not avail-
able, take the ATV to an authorized Arctic Cat ATV dealer.
To adjust idle RPM:
1. Start the engine and warm it up
to normal operating tempera-
ture.
2. Turn the idle adjustment screw
in or out until the engine idles at
1700 RPM.
Throttle Cable Adjustment
The throttle has been adjusted at the factory, and no adjustment should
be necessary. If adjustment is necessary, the following procedure should
be followed:
1. Pull back rubber boots to
access cable adjustment nut.
2. Loosen jam nut to allow cable
adjustment nut to be adjusted.
3. Turn cable adjustment nut
clockwise to increase free-
play in the cable. Turn the
adjustment nut counterclock-
wise to decrease free-play in
the cable.
4. There should be approxi-
mately 6 mm (1/4 in.) free-
play in the cable.
5. Tighten the jam nut to secure
the adjustment.
Air Filter
The air filter inside the air filter
housing must be kept clean to pro-
vide good engine power and gas mileage. If the ATV is used under nor-
mal conditions, service the filter at the intervals specified. If operated in
dusty, wet, or muddy conditions, inspect and service the filter more fre-
quently. Use the following procedure to remove the filter and inspect
and/or clean it.
! WARNING
Adjust the idle to the correct RPM. Make sure the engine is at
normal operating temperature before adjusting the idle RPM.
ATV0052A
KM004A
CAUTION
Failure to inspect the air filter frequently if the ATV is used in
dusty, wet, or muddy conditions can damage the engine.
KM070A
KM071A
