Checking/Adjusting Valve Clearance (7000); Checking/Adjusting Apv Cables (6000) - Arctic Cat XF 7000 Operator's Manual

A. TAN or LIGHT BROWN insula-
tor indicates correct spark plugs
(heat range).
B. LIGHT GRAY or WHITE insula-
tor indicates over-heating of the
engine. This condition is caused by
a too lean condition or incorrect
spark plugs (heat range too hot).
C. BLACK insulator indicates fuel
in the combustion chamber is not
burning completely. This condi-
tion is caused by a too rich con-
dition, too much oil, or incorrect
spark plugs (heat range too cold).
NOTE: If the center electrode insu-
lators are light gray, white, or black
and if the oil-injection pump syn-
chronization and ignition timing are
correct, different heat-range spark
plugs may be necessary. Authorized
Arctic Cat Snowmobile dealers have
detailed spark plug
Consult a dealer before changing
spark plugs, as incorrect heat-range
spark plugs could
engine performance or engine dam-
age.
CAUTION
If a spark plug is light gray, white, or
black and another is tan or light
brown, take the snowmobile to an
authorized Arctic Cat Snowmobile
dealer for inspection and service. If
not under warranty, this service is at
the discretion and expense of the
snowmobile owner.
Checking/Adjusting
Valve Clearance (7000)
After 25000 miles, valve clearance
should be checked and adjusted as neces-
sary.
NOTE: Take the snowmobile to an
authorized Arctic Cat Snowmobile
dealer for inspection and service.
This service is at the discretion and
expense of the snowmobile owner.
CAUTION
It is critical that the checking/adjust-
ing valve clearance be done at the
recommended intervals or severe
engine damage may occur.
Checking/Adjusting
APV Cables (6000)
Proper cable adjustment is critical to the
operation of the APV system. Although
inspecting cable adjustment is recommended
every 1000-2000 miles, the cable should not
need adjustment often. To check the cable
adjustment, use the following procedure:
1. Using a small needle-nose pliers,
remove the servomotor cable holder.
information.
cause poor
2. Using an adjustable wrench, rotate
the servomotor actuator counter-
clockwise to loosen the cable; then
pull the cable housings down and
out of the servomotor.
Do not use the nut securing the
clutch to the servomotor to rotate the
actuator.
NOTE: For installing purposes,
note the side that the servomotor
cables are installed on.
3. Slide each cable drum out of the slot
of the servomotor actuator.
4. While holding the cable housing
firmly, pull the cable as far out as it
will go; then release. Repeat three to
four times. The cable/exhaust valve
should move freely without binding.
0745-819
0745-823
CAUTION
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