Secondary Sheave - Yamaha YW50AP Service Manual

V-BELT, CLUTCH AND
SECONDARY/PRIMARY SHEAVE
a
a
4-20

SECONDARY SHEAVE

1. Inspect:
8 Secondary fixed sheave 1
8 Secondary sliding sheave 2
Scratch/Crack/Damage→Replace as a
set.
8 Oil seal 3
Damage→Replace
2. Inspect:
8 Torque cam grove 1
8 Guide pin 2
Wear/Damage→Replace as a set.
8 O-rings 3
Damage→Replace.
3. Measure:
8 Clutch spring free length
Out of specification→Replace.
Clutch spring free length:
94 mm(3.7 in)
<Limit>:
91 mm(3.58 in)
4. Inspect:
8 Clutch housing inner surface
Oil/Scratches→Remove.
Use a rag soaked in lacquer
Oil
thinner or solvent.
Use an emery cloth (lightly
Scratches
and evenly polishing).
5. Measure:
8 Clutch housing inside diameter a
Out of specification→Replace.
Clutch housing inside diameter:
105 mm(4.13 in)
<Wear limit>:
105.5 mm(4.15 in)
ENG