Yamaha SnoScoot SXR2NJ, Operator'S Manual

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14
2. Accelerate; then compress brake lever
to decelerate to a stop.

NOTE: Lightly apply the brake lever
to come to an easy stop; do not over-
apply brakes or “lock up” the track.
3. Repeat procedure 10-15 times
allowing some cooling between
stops.
Track Tension

NOTE: Track tension and track
alignment are interrelated; there-
fore, always check both, even if only
one adjustment seems necessary.
Track tension is directly related to the
overall performance of the snowmobile.
If the track is too loose, it may slap
against the tunnel causing wear, or it may
ratchet on the track drive sprockets.
Yamaha recommends that the track ten-
sion be checked once a month and
adjusted accordingly.
Checking Track Tension
1. Remove excess ice and snow
buildup from the track, track drive
sprockets, and the inside of the skid
frame.
2. Place the rear of the snowmobile up
on a safety stand high enough so the
track is free of the floor.
3. At the lower mounting position of
the rear shock, hook a spring scale
around a track clip; then pull down
on the scale to 9 kg (20 lb). Measure
the deflection (distance) between the
bottom of the wear strip and the run-
ning surface of the track clip. The
measurement should be 50 mm (2
in.).
SNO-950
Adjusting Track Tension
1. Loosen the idler wheel cap screws.
2. Loosen the rear idler wheel adjust-
ing bolt jam nuts.
SNO-949

NOTE: To ensure proper track ten-
sion adjustment, perform all adjust-
ments on both sides of the
snowmobile.
3. If the deflection (distance between
the bottom of the wear strip and the
inside of the track) exceeds specifi-
cations, tighten the adjusting bolts to
take up excessive slack in the track.
4. If the distance between the bottom
of the wear strip and the inside sur-
face of the track is less than speci-
fied, loosen the adjusting bolts to
increase the slack in the track.
5. Check track alignment (see Track
Alignment section).
! WARNING
Do not attempt sudden stops or put
yourself into a situation where a sud-
den stop will be required until the
brake pads are properly burnished.
! WARNING
Track tension must be properly main-
tained. Personal injury could result if
a track is allowed to become exces-
sively loose.
! WARNING
DO NOT attempt to check or adjust
track tension with engine running.
Turn ignition key to the OFF position.
Personal injury could result from
contact with a rotating track.