18
NOTE: The rail wear strips will
wear rapidly if the snowmobile is
operated on terrain on which the
snow cover is minimal. Loose snow
is required to cool and lubricate the
wear strips and prevent accelerated
wear.
Recoil Starter Air
Vents
It is important for proper engine cooling
that the air vents located on the recoil
starter are kept clean. These air vents
should be checked periodically and
cleaned if necessary.
0744-923
Lights
The correct headlight bulb is p/n 8ML-
H4314-00. The correct taillight (LED) is
p/n 8ML-H4710-00.
To change the headlight bulb, use the fol-
lowing procedure:
1. Open the hood; then disconnect the
harness connector from the head-
light bulb.
2. Remove the bulb from the housing
by rotating it counterclockwise until
loose.
3. Install the new bulb into the hous-
ing; then rotate the bulb clockwise to
lock it into place.
Adjusting Headlight Aim
The headlight can be adjusted for vertical
aim of the HIGH/LOW beam. The geo-
metric center of HIGH beam zone is to be
used for vertical aiming.
1. Position the snowmobile on a level
floor so the headlight is approxi-
mately 8 m (25 ft) from an aiming
surface (wall or similar surface).
NOTE: There should be an “aver-
age” operating load on the snowmo-
bile when adjusting headlight aim.
2. Measure the distance from the floor
to midpoint of the headlight.
3. Using the measurement obtained in
step 2, make a horizontal mark on
the aiming surface.
4. Make a vertical mark which inter-
sects the horizontal mark on the aim-
ing surface directly in front of the
headlight.
5. Engage the brake lever lock and start
the engine. Move the headlight dim-
mer switch to the HIGH beam posi-
tion. DO NOT USE LOW BEAM.
6. Observe the headlight beam aim.
Proper aim is when the most intense
beam is centered on the vertical
mark 50 mm (2 in.) below the hori-
zontal mark on the aiming surface.
SNO-955A
7. Adjust the headlight using the screw
on the backside of the headlight until
correct aim is obtained. Shut the
engine off; then disengage the brake
lever lock.
CAUTION
Serious overheating of the engine
and engine damage will result if the
air vents are not kept clean.
CAUTION
Do not touch the glass portion of the
bulb. If the glass portion is touched,
it must be cleaned with a dry cloth
before installing.