Periodic maintenance and adjustment
74
ESU12085
V-belt
WARNING
EWS00402
●
Coming in contact with the rotating V-
belt or clutch parts can cause severe in-
jury or death. Never run the engine with
the drive guard removed.
●
Make sure that the drive guard is in-
stalled securely before operating the
snowmobile to protect against severe
injury or death from a broken V-belt or
other part should it come off the snow-
mobile while it is in operation.
NOTICE
ECS00830
Never run the engine with the V-belt re-
moved. Clutch components can be dam-
aged.
The V-belt should be checked before each
ride.
To check the V-belt
1.
Remove the left side cover (PZ50RT /
PZ50GT / PZ50MT), or open the shroud
and remove the left upper cover and the
left side cover (PZ50VT / PZ50MP). (See
page 60 for the procedures.)
2.
Remove the drive guard.
3.
Check the V-belt for wear and damage.
Replace if necessary.
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 / PZ50MP).
To replace 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
ECS00520
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.
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 / PZ50MP). (See
page 60 for the procedures.)
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. 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)
U8GKS6E0.book Page 74 Tuesday, April 17, 2012 8:48 AM
