Checking The Starter Clutch; Installing The Starter Clutch; Installing The Generator - Yamaha WR125R 2009 Service Manual

EAS24570

CHECKING THE STARTER CLUTCH

1. Check:
• Starter clutch rollers "1"
• Starter clutch spring caps "2"
• Starter clutch springs "3"
Damage/wear → Replace the starter clutch
assembly.
2
1
3
2
2. Check:
• Starter clutch idle gear
• Starter clutch gear
Burrs/chips/roughness/wear → Replace the
defective part(s).
3. Check:
• Starter clutch gear contact surfaces
Damage/pitting/wear → Replace the starter
clutch gear.
4. Check:
• Starter clutch operation
M MMM M MMM M M MMM M
a. Install the starter clutch gear "1" onto the
starter clutch and hold the generator rotor.
b. When turning the starter clutch gear clock-
wise "A", the starter clutch and the starter
clutch gear should engage, otherwise the
starter clutch is faulty and must be replaced.
c. When turning the starter clutch gear counter-
clockwise "B", it should turn freely, otherwise
the starter clutch is faulty and must be re-
placed.
B
L LLL L LLL L L LLL L
GENERATOR AND STARTER CLUTCH
3
1
3
1
M MMM M M MMM M M MMM M
A 1
L LLL L L LLL L L LLL L
EAS24600

INSTALLING THE STARTER CLUTCH

1. Install:
• Starter clutch assembly
• Starter clutch bolts "1"
TIP
• While holding the generator rotor "2" with the
sheave holder "3", tighten the starter clutch
bolts.
2
• Do not allow the sheave holder to touch the
projections on the generator rotor.
MMM
3
EAS24500

INSTALLING THE GENERATOR

1. Install:
• Woodruff key
• Generator rotor
• Washer
• Generator rotor nut
TIP
• Clean the tapered portion of the crankshaft and
the generator rotor hub.
• When installing the generator rotor, make sure
the woodruff key is properly sealed in the key-
way of the crankshaft.
2. Tighten:
• Generator rotor nut "1"
LLL
5-32
Starter clutch bolt
14 Nm (1.4 m·kgf, 10 ft·lbf)
LOCTITE®
Sheave holder
90890-01701
Primary clutch holder
YS-01880-A
Generator rotor nut
70 Nm (7.0 m·kgf, 50 ft·lbf)
1
2