Checking The Clutch Boss/Pressure Plate/Primary Driven Gear/The Pull Lever Shaft And Pull Rod; Installing The Clutch - Yamaha YZF-R25 Service Manual

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CHECKING THE CLUTCH BOSS
1. Check:
• Clutch boss splines
Damage/pitting/wear → Replace the clutch
boss.
TIP
Pitting on the clutch boss splines will cause er-
ratic clutch operation.
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CHECKING THE PRESSURE PLATE
1. Check:
• Pressure plate "1"
Cracks/damage → Replace.
• Bearing "2"
Damage/wear → Replace.
2
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CHECKING THE PRIMARY DRIVE GEAR
1. Check:
• Primary drive gear
Damage/wear → Replace the crankshaft and
clutch housing as a set.
1
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CHECKING THE PRIMARY DRIVEN GEAR
1. Check:
• Primary driven gear "1"
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CHECKING THE PULL LEVER SHAFT AND
PULL ROD
1. Check:
• Pull lever shaft pinion gear teeth "1"
• Pull rod teeth "2"
2. Check:
• Pull rod bearings
1
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INSTALLING THE CLUTCH

1. Install:
• Washer
• Spacer
• Clutch housing
• Thrust plate
• Clutch boss "1"
• Lock washer
• Clutch boss nut "2"
5-54
Excessive noise during operation → Replace
the crankshaft and clutch housing as a set.
Damage/wear → Replace the clutch housing
and crankshaft as a set.
Excessive noise during operation → Replace
the clutch housing and crankshaft as a set.
Damage/wear → Replace the pull rod and
pull lever shaft as a set.
2
Damage/wear → Replace.
New
CLUTCH
1
1