Yamaha CS50 - Checking the Secondary Sheave

ENG
INSPECTION AND REPAIR
4-19
EAS00322
CHECKING THE SECONDARY SHEAVE
1. Inspect:
• secondary fixed sheave 
• secondary sliding sheave 
Striping/Cracks/Damage

Replace as a
set.
• oil seal 
Damage

Replace.
2. Inspect:
• torque cam groove 
• guide pin 
Wear/Damage

Replace as a set
• o-ring 
Damaged

Replace
3. Measure:
• clutch spring free length
Outside specified value

Replace
4. Inspect:
• clutch housing inner surface
Oil/Striping

Clean
5. Measure:
• internal diameter of the clutch hub
a
Outside of specification

Replace
Clutch spring free length
121.7 mm
<Limit>: 106.7 mm
Oil
Use a cloth dampened
with dissolvent
Striping
Use sand paper (polish lightly
and uniformly)
Clutch housing inside diameter
107.0 mm
<Wear limit>: 107.4 mm