Yamaha MIO Service Manual page 277

a
7 - 23
STARTER MOTOR
4. Measure:
• armature assembly resistances (commuta-
tor and insulation)
Out of specification → Replace the starter
motor.
M MMM M MMM M M MMM M
a. Measure the armature assembly resis-
tances with the pocket tester.
Pocket tester
90890-03112
Armature coil
Commutator resistance 1
0.032 ~ 0.039 Ω at 20 °C (68 °F)
Insulation resistance 2
Above 1 MΩ at 20 °C (68 °F)
b. If any resistance is out of specification,
replace the starter motor.
L LLL L LLL L L LLL L
5. Measure:
• brush length a
Out of specification → Replace the brushes
as a set.
Brush length wear limit
3.5 mm (0.14 in)
–
ELEC
M MMM M M MMM M M MMM M
L LLL L L LLL L L LLL L
+
MMM
LLL