Arctic Cat ZR 900 Series 2006 Operator's Manual page 24

At high RPM, the exhaust valves are
raised. This creates a "high port"
exhaust design calibrated to provide
maximum performance at high
RPM.

NOTE: The RPM ranges will
vary from model to model.

NOTE: If the servomotor cycles
three times and then shuts down,
the exhaust valve cables are not
adjusted correctly. The exhaust
valves may also be sticking.
GENERAL INFORMATION

NOTE: APV cleaning/cabl e
adjustments may be done by the
snowmobile owner if qualified to
do so. If the owner does not feel
qualified, take the snowmobile to
an authorized Arctic Cat Snow-
mobile dealer for this service.
This service is at the discretion
and expense of the snowmobile
owner.
To adjust the APV System, use the
following prcedure:
739-152A
1. Remove the cover from the
servo; then remove the actuat-
ing cables from the servo.
2. While holding the cable hous-
ing, lightly pull on one cable
end to remove any slack.
3. Measure the amount of exposed
cable from the cable housing to
the end of the cable.
739-152D
4. Repeat steps 2 and 3 for each
cable; then compare the mea-
surements.
APV CABLE LENGTH
ENGINE
MODEL
739-152B
500 cc
600 cc
700 cc
900 cc
0735-516
CENTER
± 1 mm (0.039 in.)
34.5 mm
(1.35 in.)
34.5 mm
(1.35 in.)
34.5 mm
(1.35 in.)
39.5 mm
(1.56 in.)
23