Yamaha 2009 YZF-R1 (Y) Service Manual page 312

2. Install:
• Pressure plate 2 "1"
• Clutch boss "2"
TIP
Fit the groove "a" of the pressure plate 2 to the
projection "b" of the clutch boss to assemble.
3. Install:
• Springs "1"
• Clutch boss nut "2"
Clutch boss nut
115 Nm (11.5 m·kgf, 85 ft·lbf)
TIP
• Lubricate the clutch boss nut threads with
engine oil.
• While holding the clutch boss "3" with the
universal clutch holder "4", tighten the clutch
boss nut.
New
• Stake the clutch boss nut at a cutout "a" in
the main axle.
Universal clutch holder
90890-04086
YM-91042
4. Lubricate:
• Friction plates
• Clutch plates
(with the recommended lubricant)
Recommended lubricant
Engine oil
5. Install:
• Friction plates
• Clutch plates
TIP
• First, install a friction plate and then alternate
between a clutch plate and a friction plate.
• Install the last friction plate "1" offset from the
other friction plates "2", making sure to align
a projection on the friction plate with the
punch mark "a" on the clutch housing.
5-67
CLUTCH