Yamaha PZ50RTZ Owner's Manual page 68

Periodic maintenance and adjustment
1. V-belt wear limit
New V-belt width:
34.1 mm (1.34 in)
V-belt wear limit width:
32.5 mm (1.28 in)
4. Install the drive guard.
5. Install the left side cover (PZ50RT /
PZ50GT / PZ50MT), or install the left side
cover and the left upper cover, and then
close the shroud (PZ50VT).
To replace the V-belt
EWS00411
WARNING
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.
ECS00520
NOTICE
To ensure proper clutch performance as
the V-belt wears, it is necessary to adjust
the gap between the secondary fixed
sheave and the secondary sliding sheave
by changing the positions of the spacers.
Have a Yamaha dealer make this adjust-
ment.
1. Place the snowmobile on a level surface
and apply the parking brake.
62
2. Remove the left side cover (PZ50RT /
PZ50GT / PZ50MT), or open the shroud
and remove the left upper cover and the
left side cover (PZ50VT). (See page 48
for removal procedure.)
3. Remove the drive guard.
4. Rotate the secondary sliding sheave
clockwise and push it so that it separates
from the secondary fixed sheave.
1. Secondary sliding sheave
2. Secondary fixed sheave
5. Pull the V-belt up over the secondary
fixed sheave.
1. V-belt
6. Remove the V-belt from the secondary
sheave assembly and primary sheave
assembly.
7. Install the new V-belt over the primary
sheave assembly.
8. Rotate the secondary sliding sheave
clockwise and push it so that it separates
from the secondary fixed sheave.