Yamaha YZ450F(Y Owner's Manual page 102

2. Install:
• Lock washer "1"
• Nut (clutch boss) "2"
Nut (clutch boss):
75 Nm (7.5 m•kg, 54
ft•lb)
Make sure to tighten to specifica-
tion; otherwise, it may damage the
other part that is fastened togeth-
er.
• Install the lock washer with its con-
caves fitted over the convexes of
the clutch boss.
• Use the clutch holding tool "3" to
hold the clutch boss.
Clutch holding tool:
YM-91042/90890-04086
A. For USA and CDN
B. Except for USA and CDN
3. Bend the lock washer "1" tab.
4. Install:
• Friction plate "1"
• Clutch plate "2"
• Install the clutch plates and friction
plates alternately on the clutch
boss, starting with a friction plate
and ending with a friction plate.
• Apply the engine oil on the friction
plates and clutch plates.
5. Install:
• Bearing "1"
• Washer "2"
• Circlip "3"
To push rod 1 "4".
Apply the engine oil on the bearing
and washer.
6. Install:
• Push rod 2 "1"
• Ball "2"
• Push rod 1 "3"
Apply the engine oil on the push rod
1, 2 and ball.
7. Install:
• Pressure plate "1"
8. Install:
• Clutch spring
• Bolt (clutch spring)
Bolt (clutch spring):
10 Nm (1.0 m•kg, 7.2
ft•lb)
Tighten the bolts in stage, using a
crisscross pattern.
4-32
CLUTCH
9. Install:
• Gasket (clutch cover) "1"
• Dowel pin "2"
10. Install:
• Clutch cover "1"
• Bolt (clutch cover)
Bolt (clutch cover):
10 Nm (1.0 m•kg, 7.2
ft•lb)
Tighten the bolts in stage, using a
crisscross pattern.