Yamaha RS Venture RST90Y Owner's Manual page 64

Periodic maintenance and adjustment
ure could result in loss of braking ability
and snowmobile control, which could
cause an accident.
Checking the drive track
EWS00490
WARNING
Do not operate the snowmobile if you find
damage to the drive track, or if it has been
maladjusted. Drive track damage or failure
could result in loss of braking ability and
snowmobile control, which could cause
an accident.
Check the drive track for deflection, wear, and
damage.
Adjust or replace if necessary. (See the fol-
lowing section for more details.)
Measuring the drive track deflection
1. Lay the snowmobile on its side.
2. Measure the drive track deflection with a
spring scale. Pull at the center of the drive
track with a force of 100 N (10 kgf, 22 lbf).
58
1. Spring scale
TIP
Measure the gap between the slide runner
and the edge of the track window. Measure
both sides.
1. Drive track deflection
Standard drive track deflection:
30.0–35.0 mm (1.18–1.38 in)
3. If the deflection is incorrect, adjust the
drive track.
Adjusting the drive track
1. Lift the rear of the snowmobile onto a suit-
able stand to raise the drive track off the
ground.
2. Loosen the rear axle nut.