Removing The Clutch; Checking The Friction Plates - Yamaha YZF-R1P Service Manual

CLUTCH
EAS00277

REMOVING THE CLUTCH

1. Straighten the lock washer tab.
2. Loosen:
• clutch boss nut 1
NOTE:
_
While holding the clutch boss 2 with the uni-
versal clutch holder 3, loosen the clutch boss
nut.
Universal clutch holder
YM-91042
3. Remove:
• clutch boss nut 1
• lock washer 2
• clutch boss assembly 3
• thrust washer
NOTE:
_
There is a built-in damper between the clutch
boss and the clutch plate. It is not necessary to
remove the wire circlip 4 and disassemble the
built-in damper unless there is serious clutch
chattering.
EAS00280

CHECKING THE FRICTION PLATES

The following procedure applies to all of the
friction plates.
1. Check:
• friction plate
Damage/wear → Replace the friction plates
as a set.
2. Measure:
• friction plate thickness
Out of specification → Replace the friction
plates as a set.
NOTE:
_
Measure the friction plate at four places.
Friction plate thickness
2.9 ~ 3.1 mm
(0.114 ~ 0.122 in)
<Limit>: 2.8 mm (0.110 in)
5 - 44
ENG