ELEC
STARTER MOTOR
CHECKING THE STARTER MOTOR
1. Check:
• inducted commutator
Dirt
-->
Clean with 600 grit sandpaper.
2. Measure:
• commutator diameter
a
Out of specification
-->
Replace
3. Measure:
• mica undercut
a
Out of specification
-->
Scrape the mica to the
proper measurement with a hacksaw blade
that has been grounded to fit the commutator.
4. Measure:
• armature assembly resistances
(commutator and insulation)
Out of specification
-->
Replace
Mica undercut
0.70 mm (0,028 in)
Commutator diameter limit
27.0 mm (1.06 in)
7-20
a
a
The mica of the commutator must be undercut
to ensure proper operation of the commutator.
NOTE:
Summary of Contents for YBR250 2007
Page 1: ...YBR250 SERVICE MANUAL 5D1 F8197 E0 2007 ...
Page 2: ......
Page 359: ...YAMAHA MOTOR DA AMAZÔNIA LTDA ...
