37
4. Remove the bulb from the headlight
housing and disconnect the wiring
harness from the bulb.
0740-462
Installing Headlight Bulb
1. Plug the wiring harness into the
headlight bulb.
2. Insert the bulb into the headlight
housing.
3. Press the air silencer plenum into
place on the hood and secure with
the O-rings; then close the hood.
4. Carefully push the headlight lenses
rearward far enough to install the
torx-head screws. Tighten the
screws securely.
5. Tighten the headlight adjustment
knobs.
6. Check headlight aim (see Adjusting
Headlight Aim in this sub-section).
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
5 cm (2 in.) below the horizontal
mark on the aiming surface.
740-153A
7. Adjust the headlight using the
adjustment knobs until correct aim is
obtained. Shut the engine off; then
disengage the brake lever lock.
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.
! WARNING
Do not operate the snowmobile
unless headlight beam is adjusted
properly. An incorrectly adjusted
beam will not provide the operator
the optimum amount of light.
