Yamaha YZF-R25 Service Manual page 272

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Clutch boss nut
100 Nm (10 m·kgf, 72 ft·lbf)
TIP
• Lubricate the lock washer and clutch boss nut
threads with engine oil.
• While holding the clutch boss with the univer-
sal clutch holder "3", tighten the clutch boss
nut.
• Bend the lock washer tab "a" along a flat side
of the nut.
Universal clutch holder
90890-04086
Universal clutch holder
YM-91042
1
2. Install:
• Friction plates 1 "1"
• Clutch plates
• Friction plates 2 "2"
TIP
Offset the last friction plate 1 so that its tabs are
not aligned with the tabs of the other friction
plates.
3
2
a
5-55
2
3. Install:
• Bearing
(to the pressure plate)
• Pull rod "1"
• Pressure plate "2"
• Clutch springs "3"
• Clutch spring bolts "4"
Clutch spring bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
TIP
• Apply lithium-soap-based grease onto the pull
rod.
• Tighten the clutch spring bolts in stages and in
a crisscross pattern.
2
4. Install:
• Bearings "1"
New
• Oil seal "2"
(to the clutch cover)
TIP
• Lubricate the bearings with engine oil and lubri-
cate the oil seal with lithium-soap-based
grease.
• Install the bearings until they contact the sur-
faces "a" and install the oil seal until it contacts
the surface "b" as shown in the illustration.
CLUTCH
1
3
4
1

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