Yamaha FX10B Owner's Manual page 72

Periodic maintenance and adjustment
ECS00830
NOTICE
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 shroud and the left side cov-
er, and then remove the drive guard.
(See pages 18 and 52 for removal proce-
dures.)
2. Check the V-belt for wear and damage.
Replace if necessary.
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)
3. Install the drive guard, and then install the
left side cover and the shroud.
To replace and adjust 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.
66
ECS00511
NOTICE
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 18 and 52 for removal proce-
dures.)
3. 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
4. Pull the V-belt up over the secondary
fixed sheave.
1. V-belt