Yamaha YFM660FS, Supplementary Service Manual

Page: 437 / 478

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ELEC
ELECTRIC STARTING SYSTEM
5.Measure:
●
Brush length
a
(each)
Out of specification
→
Replace the brush.
Brush length:
12.5 mm (0.49 in)
<Wear limit:>
5 mm (0.20 in)
6.Measure:
●
Brush spring force
Fatigue/out of specification
→
Replace as a
set.
Brush spring force:
7.65 ~ 10.01 Nm
(780 ~ 1,020 g, 27.5 ~ 36.0 oz)
7.Inspect:
●
Oil seal
●
Bushing
●
O-rings
Wear/damage
→
Replace.
ASSEMBLING THE STARTER MOTOR
1.Install:
●
Brush seat 1
1
NOTE:
Align the projection
a
on the brush seat 1 with
the slot
b
on the yoke.
2.Install:
●
Yoke
●
Brackets
NOTE:
Align the match marks
a
on the yoke with the
match marks
b
on the brackets.