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13. Shut the engine off; then allow the
engine to cool. Remove the oil level
stick from the oil tank and verify it is
within the "NORMAL" range on the
stick.
NOTE: If the oil and engine are
not at operating temperature, the
oil level may read too low. Always
make sure the engine is at operat-
ing temperature before checking
the oil.
14. Install the access plate and torx-head
screws beneath the snowmobile; then
install the hood and access panels.
Coolant Level
NOTE: Use a good quality, ethyl-
ene glycol-based, automotive-type
coolant.
WARNING
Always check the coolant level with
the engine cold.
Locate the filler neck located above the
resonator; then remove the coolant cap
from the filler neck. Verify that the coolant
is at the bottom of the tab in the filler neck.
Locate the coolant tank above the drive
clutch; then remove the plug from the
coolant tank. Add coolant to the full level
on the tank. Install the plug.
SNO-482
Spark Plugs
Full Level
0747-547
CAUTION
If the coolant is below the neck and
if coolant has been added, immedi-
ately inspect for leakage and/or
damage. If leakage or damage is
detected, take the snowmobile to
an authorized Yamaha Snowmobile
dealer for service. If not under war-
ranty, this service is at the discre-
tion
and
expense
snowmobile owner.
NOTE: Always use the recom-
mended spark plugs in the engine.
See the appropriate specifications
sheet for correct spark plug gap.
CAUTION
If adjusting spark plug gap is nec-
essary, do not use the center elec-
trode as a leverage point. Damage
to the plug may occur.
1. Disconnect the main harness from the
ignition coils; then remove the ignition
coils from the cylinder head cover.
2. Remove the three spark plugs.
NOTE: Prior to installing the
spark
plugs,
between the electrode and ground
strap. The clearance should be 0.7-
0.8 mm (0.028-0.031 in.).
3. Install new spark plugs. Tighten to
1.3 kg-m (9.4 ft-lb).
4. Install the ignition coils onto the cyl-
inder head cover making sure they
are fully seated. Connect the main
harness to the ignition coils.
5. Install the hood and access panels.
Full Level
0747-766
of
the
check
the
gap
24
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