4-7
4
KC328A
2. With the choke at room temperature (approximately
70° F), measure plunger extension. Measurement
(A) should be 18.6-19.1 mm.
KC328B
3. Connect Electric Choke Test Harness to the choke
connector and a suitable 12 DC volt power supply
for 2-3 minutes. Disconnect the power and measure
plunger extension. Measurement (B) should be
22.1-23.4 mm.
KC328C
4. If the choke is damaged or the measurements are not
within specifications, the choke must be replaced.
INSTALLING
1. Lightly lubricate the O-ring on the choke body; then
carefully insert the choke assembly into the carbure-
tor being careful not to damage the plunger.
2. Secure the choke with the screw and tighten
securely; then connect the choke connector to the
wiring harness.
Throttle Cable Free-Play
To adjust the throttle cable free-play, follow this proce-
dure.
1. Slide the rubber boot away; then loosen the jam nut
from the throttle cable adjuster.
AL611D
2. Turn the adjuster until the throttle cable has proper
free-play of 3-6 mm (1/8-1/4 in.) at the lever.
ATV-0047
3. Tighten the jam nut against the throttle cable adjuster
securely; then slide the rubber boot over the adjuster.
Engine RPM (Idle)
To properly adjust the idle RPM, a tachometer is neces-
sary. To adjust idle RPM, use the following procedure.
NOTE: The idle adjustment screw is located on the
right-hand side of the carburetor.
1. With the transmission in neutral, start the engine and
warm it up to normal operating temperature of 85° C
(185° F).
2. Turn the idle adjustment screw clockwise one turn
past the recommended RPM setting; then turn it
counterclockwise to 1250-1350 RPM.
FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983
www.mymowerparts.com
