4-30
CLUTCH
REMOVING THE CLUTCH BOSS
1. Remove:
• Nut "1"
• Lock washer "2"
• Clutch boss "3"
Straighten the lock washer tab and use the
clutch holding tool "4" to hold the clutch boss.
A. For USA and CDN
B. Except for USA and CDN
CHECKING THE CLUTCH HOUSING AND
BOSS
1. Inspect:
• Clutch housing "1"
Cracks/wear/damage
→
Replace.
• Clutch boss "2"
Scoring/wear/damage
→
Replace.
CHECKING THE PRIMARY DRIVEN GEAR
1. Check:
• Circumferential play
Free play exists
→
Replace.
• Gear teeth "a"
Wear/damage
→
Replace.
CHECKING THE CLUTCH SPRINGS
1. Measure:
• Clutch spring free length "a"
Out of specification
→
Replace springs as a set.
CHECKING THE FRICTION PLATES
1. Measure:
• Friction plate thickness
Out of specification
→
Replace friction plate
as a set.
Measure at all four points.
Clutch holding tool:
YM-91042/90890-04086
Clutch spring free length:
40.1 mm (1.579 in)
<Limit>: 38.1 mm (1.500 in)
Friction plate thickness:
2.9–3.1 mm (0.114–0.122 in)
<Limit>: 2.8 mm (0.110 in)
Summary of Contents for YZ125 2009
Page 6: ...YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY ...
Page 45: ...MEMO ...
Page 46: ...2 15 CABLE ROUTING DIAGRAM CABLE ROUTING DIAGRAM ...
Page 48: ...2 17 CABLE ROUTING DIAGRAM ...
Page 50: ...2 19 CABLE ROUTING DIAGRAM ...
Page 52: ...2 21 CABLE ROUTING DIAGRAM ...
Page 80: ...3 27 CHASSIS ...
Page 233: ......