Adjusting Rear Spring Tension; Ski Alignment - Yamaha SRX 120 2017 Operator's Manual

5. If the distances from the rear idler
wheels to the inner track drive lugs
are not the same on both sides, an
adjustment is necessary.
Adjusting Track Alignment
1. On the side of the track which has
the inner track drive lugs closer to
the rear idler wheel, loosen the idler
wheel cap screw and the adjusting
bolt jam nut; then rotate the adjust-
ing bolt clockwise 1 to 1 1/2 turns.
2. Check track alignment and continue
adjustment until proper alignment is
obtained.
NOTE: Make sure correct track

tension is maintained after adjust-
ing track alignment (see Track Ten-
sion section).
3. After proper track alignment is
obtained, tighten both the adjusting
bolt jam nut and the idler wheel cap
screw securely.
! WARNING
If a jam nut is not tightened properly,
the adjusting bolt could loosen causing
the track to become dangerously loose.
4. Field test the track under actual con-
ditions.
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5. After the field test, check the align-
Adjusting Rear Spring
Tension
Rear spring tension adjustment is accom-
plished by rotating the adjusting cams.
Position 3 provides the stiffest ride, and
0727-729 position 1 is for the light driver or slow-
speed trail riding. Position 2 is for the
average operator under normal condi-
tions. Always rotate the cam from the
lighter position to the heavier position.
Never force the adjustment cams
from the low position to the high
position. Cam damage may occur.
Using a 13/16 in. wrench, rotate the cam
until it is in the desired position. To
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stiffen the ride, rotate the cam so as to
raise the spring end. Make the adjustment
on the other cam and be sure both cams
are adjusted equally.

Ski Alignment

The skis have been aligned during setup of
the snowmobile. Ski alignment usually will
not change unless a rock or similar hard
object is hit while the snowmobile is being
operated. Yamaha recommends that the ski
alignment be checked once a week.
Checking Ski Alignment
1. Turn the handlebar to the straight-
2. Measure the distances to the inside
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ment of the track. If additional adjust-
ment is necessary, repeat Adjusting
Track Alignment procedure.
CAUTION
ahead position.
edges of the skis. Make sure the
measurements are taken behind the
front mount bracket and ahead of the
rear mount bracket.
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