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Periodic maintenance and adjustment
64
3.
Install the drive guard, and then install the
left side cover and the shroud.
To replace and adjust the V-belt
WARNING
EWS00411
When installing a new V-belt, make sure
that it is positioned properly. Otherwise,
the V-belt clutch engagement speed will
be changed and the snowmobile may
move unexpectedly when the engine is
started, which could cause an accident.
NOTICE
ECS00511
As the V-belt wears, the position of the V-
belt will change. If the V-belt position is out
of specification, it must be adjusted to en-
sure proper clutch performance.
Have a Yamaha dealer make this adjust-
ment.
1.
Place the snowmobile on a level surface
and apply the parking brake.
2.
Remove the shroud and the left side cov-
er, and then remove the drive guard.
(See pages 17 and 50 for removal proce-
dures.)
3.
Rotate the secondary sliding sheave
clockwise and push it so that it separates
from the secondary fixed sheave.
4.
Pull the V-belt up over the secondary
fixed sheave.
5.
Remove the V-belt from the secondary
sheave assembly and primary sheave
assembly.
6.
Temporarily install the new V-belt on the
secondary sheave assembly only, and
then measure the V-belt position. Do not
force the V-belt between the sheaves; the
secondary sliding and fixed sheaves
must touch each other.
1. V-belt wear limit
New V-belt width:
34.5 mm (1.36 in)
V-belt wear limit width:
32.5 mm (1.28 in)
1. Secondary sliding sheave
2. Secondary fixed sheave
1. V-belt
U8HK12E0.book Page 64 Monday, May 17, 2010 11:42 AM