Arctic Cat ZR4000 2016 Operator's Manual page 50

2. Remove the two torx-head screws
securing the taillight to the bracket.
3. Connect the taillight harness connec-
tor; then secure the taillight to the
bracket with the two torx-head screws.
Removing/Installing
Headlight Bulb

NOTE: The bulb portion of headlight
is fragile. HANDLE WITH CARE. When
replacing the headlight bulb, the bulb
assembly must first be removed from
the housing. Do not touch the glass
portion of the bulb. If the glass is
touched, it must be cleaned with a dry
cloth before installing.
1. Disconnect the headlight harness
connector from the bulb; then
remove the rubber grommet from
the headlight housing.
2. Rotate the bulb retainer counter-
clockwise until it unlocks from the
housing; then remove the bulb.
3. Install the bulb and retainer; then
rotate the retainer clockwise until it
properly locks in place.
4. Install the rubber grommet; then
connect the headlight harness con-
nector to the bulb.
5. Check headlight aim.
! WARNING
Do not operate the snowmobile
unless headlight beam is adjusted
properly. An
beam will not provide the operator
the optimum amount of light.
46
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incorrectly adjusted
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.
7. Adjust the headlight using the adjust-
ing screw on the backside of the head-
light using a 4 mm swivel socket and
long extension until correct aim is
obtained. Shut the engine off; then
disengage the brake lever lock.
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