Yamaha MM600D, Manual

Page: 75 / 282

LUBRICATION, MAINTENANCE AND 69
Metal Metal Metal
clips
FORWARD
TRACK CORRECTLY TRACK SHIFTED TRACK SHIFTED
ALIGNED TO RIGHT
TO LEFT
Drive Chain Adjustment
Check the drive tension monthly. To adjust drive
chain tension, proceed as follows:
Loosen the adjuster jam nut (A, Figure 24).
2. the adjuster Figure 24)
loose.
3. Turn the adjuster clockwise until finger-tight.
4.
the adjuster and the jam nut.
Headlight and Taillight Lens Check
3. Start the engine and apply just enough throttle to
the track several complete
Shut engine
and allow the track to coast to a stop. Don't stop it with the
brake.
Check the alignment of the rear idler wheels and the
track lugs (Figure 22). If the are equal distance
from the lugs and the openings in track are centered
with the slide runners (A, Figure 23). the alignment is
correct. However, if the track is offset one side or the
other, alignment adjustment is required.
If the track is offset to the right Figure tighten
the right adjuster bolt and loosen the one (Figure
in equal amounts until the track is centered. the track is
offset to the
Figure tighten the adjuster
bolt loosen the right one in equal amounts.
6. Repeat Step 3 and Step 4 and if alignment still not
correct, repeat Step and then Step 3 and Step 4 until the
track is aligned. Recheck track tension.
Clean the headlight and taillight with a rag to en-
sure full light output for both assemblies. Replace dam-
aged lens assemblies as required.
Headlight and Taillight Operation Check
headlight and taillight must operate correctly for
the safe operation of the snowmobile. Start the engine and
make sure the headlight and taillight are on. Operate the
switch and check that the headlight beam moves
from low-beam to high-beam. Operate the brake and
cheek that the brake light comes on. Replace damaged
bulbs as
headlight to
adjust as described in Chap-
ter Six.