Yamaha YBR 125 Service Manual page 194

Starting system
Removal
1. Remove
Wire of starting motor
Starting motor assy
Stripping
1. Before stripping, make the identifiable mark on the
frond and rear bracke to be easy to check when asse-
mbling.
2.Remove
The front bracket
pad
The rear bracket
3. Remove
Electric button
Magnet-wheel
Electric brush
Inspection and repair
1.Check
Commutator
Dirt on the comutator→polish it with
2. Measure
Diameter of the commutator a
Out of normal value→Repace the starting motor
Wear limit value of commutator
7-18
ELEC
t
600 sand paper
21mm