key YAMAHA TTR125 2004 User Guide

4 - 62
ENG
CDI MAGNETO AND STARTER CLUTCH
(TT-R125E/TT-R125LWE)
REMOVAL POINTS
Rotor
1. Remove:
Nut (rotor) 1
Plain washer 2
Use the sheave holder 3.
Sheave holder:
YS-1880-A/90890-01701
2. Remove:
Rotor 1
Use the flywheel puller 2.
Flywheel puller:
YU-33270-B/90890-01362
EC4L4000
INSPECTION
EC4L4101
CDI magneto
1. Inspect:
Rotor inner surface a
Stator outer surface b
Damage → Inspect the crankshaft
runout and crankshaft bearing.
If necessary, replace CDI magneto and/
or stator.
EC4L4200
Woodruff key
1. Inspect:
Woodruff key 1
Damage → Replace.
Starter clutch
1. Check:
Starter clutch
Damage/wear → Replace.
2. Check:
Idle gear
Starter clutch gear
Pitting/burrs/chips/roughness/wear →
Replace the defective parts.

4 - 64
ENG
3. Install the starter clutch 1 on the rotor 2.
NOTE:
Install the starter clutch with its plate portion
a facing the rotor.
Insert the plate portion of the starter clutch
so that it is flush with the surface of contact
b with the rotor.
12 b
a
4. Tighten:
Bolt (starter clutch)
NOTE:
Caulk a the end of the starter clutch holding
bolt near its outer diameter to serve as a stop-
per.
a
T R..30 Nm (3.0 m · kg, 22 ft · lb)
5. Install:
Starter wheel gear 1
Woodruff key 2
Rotor 3
NOTE:
Clean the tapered portion of the crankshaft
and the magneto hub.
When installing the magneto rotor, make
sure the woodruff key is properly seated in
the key way of the crankshaft.
Apply the engine oil on the starter wheel
gear inner circumference.
6. Install:
Plain washer 1
Nut (magneto) 2
NOTE:
Tighten the nut (magneto) while holding the
magneto with a sheave holder 3.
Sheave holder:
YS-1880-A/90890-01701
2
1
3
E
T R..80 Nm (8.0 m · kg, 58 ft · lb)
CDI MAGNETO AND STARTER CLUTCH
(TT-R125E/TT-R125LWE)