Yamaha YZ 2002 Series, Owner'S Service Manual

Page: 276 / 568

4-32
ENG
CLUTCH AND PRIMARY DRIVEN GEAR
EC493000
REMOVAL POINTS
EC483211
Clutch boss
1. Remove:
9
Nut 1
9 Lock washer
2
9 Clutch boss
3
NOTE:
Straighten the lock washer tab and use the
clutch holding tool
4
,
5
to hold the clutch boss.
å
For USA and CDN
∫
Except for USA and CDN
EC494000
INSPECTION
EC484100
Clutch housing and boss
1. Inspect:
9 Clutch housing
1
Cracks/Wear/Damage
→
Replace.
9 Clutch boss
2
Scoring/Wear/Damage
→
Replace.
EC484201
Primary driven gear
1. Check:
9 Circumferential play
Free play exists
→
Replace.
9 Gear teeth
a
Wear/ Damage
→
Replace.
EC484400
Clutch spring
1. Measure:
9 Clutch spring free length
a
Out of specification
→
Replace springs as
a set.
Clutch holding tool:
YM-91042................................
4 4
90890-04086............................
5 5
Clutch spring free length:
Standard <Limit>
41.2 mm 39.2 mm
(1.622 in) (1.543 in)
å
∫
å