Checking The Clutch Boss; Checking The Pressure Plate; Checking The Push Rods; Checking The Push Lever - Yamaha YFZ450S 2003 Service Manual

2
EBS00304

CHECKING THE CLUTCH BOSS

1. Check:
• clutch boss splines
NOTE:
_
Pitting on the clutch boss splines will cause
erratic clutch operation.
EBS00305

CHECKING THE PRESSURE PLATE

1. Check:
• pressure plate

CHECKING THE PUSH RODS

1. Check:
• push rod 1 1
• bearing 2
• plain washer 3
• push rod 2 4
• ball 5

CHECKING THE PUSH LEVER

1. Check:
• push lever 1
• push lever shaft 2
1
EBS00307

CHECKING THE PRIMARY DRIVEN GEAR

1. Check:
• primary driven gear
4 - 52
CLUTCH
Damage/pitting/wear → Replace the clutch
boss.
Cracks/damage → Replace.
Wear/damage/cracks/bend → Replace the
defective part(s).
Damage/wear → Replace.
Damage/wear → Replace the primary drive
gear and clutch housing as a set.
Excessive noise
Replace the primary drive gear and clutch
housing as a set.
ENG
during operation
→