Yamaha YZ250F(X) Owner's Service Manual page 99

INSTALLING THE CLUTCH
1. Install:
• Primary driven gear "1"
• Thrust washer "2"
• Clutch boss "3"
Apply the engine oil on the primary
driven gear inner circumference.
2. Install:
• Lock washer "1"
• Nut (clutch boss) "2"
Nut (clutch boss):
60 Nm (6.0 m•kg, 43
ft•lb)
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:
• Seat plate "1"
• Cushion spring "2"
• Install the seat plate with its cham-
fered portion "a" facing the clutch
boss "3".
• Install the seat plate so that it is not
caught on the step "b".
• Install the cushion spring with its
concave surface "c" facing outward.
5. Install:
• Friction plate "1"
• Clutch plate 1 "2"
• Clutch plate 2 "3"
• 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.
• Unlike the clutch plate 2, the clutch
plate 1 has no surface gloss. Use
the clutch plate 1 for the first while
paying attention to the difference in
surface gloss.
6. Install:
• Bearing "1"
• Washer "2"
• Circlip "3"
To push rod 1 "4".
Apply the engine oil on the bearing
and washer.
4-32
CLUTCH
7. Install:
• Push rod 2 "1"
• Ball "2"
• Push rod 1 "3"
Apply the engine oil on the push rod
1, 2 and ball.
8. Install:
• Pressure plate "1"
9. Install:
• Clutch spring "1"
• Bolt (clutch spring) "2"
Bolt (clutch spring):
10 Nm (1.0 m•kg, 7.2
ft•lb)
Tighten the bolts in stage, using a
crisscross pattern.
10. Install:
• Dowel pin "1"
• Gasket (clutch cover) "2"