
11.ELECTRICAL SYSTEM
11-3
BRUSH BRUSH
Check the brush on the brush holder whether it
is worn abnormal, cracked or not smooth.
Worn, cracked, or not smooth: → Replace
RECTIFIER
Check the rectifier whether it is discolored,
abnormal wear or concave.
Abnormal wear or damage: → Replace
If the rectifier is discolored, grind it with sanding
paper, then wipe it with a clean fabric.
If there is concave, scrape off insulator B, so that
the distance with A is d.
d≥1.5mm
ARMATURE COIL
Test the connection between each wire and the
armature coil with the multimeter.
If they are not connected, replace the armature
shaft.
OIL SEAL
Check the oil seal lip for damage or leak.
Damage or leakage: →Replace the starter motor.
STARTER RELAY
Inter-terminal voltage is 12V. Test the direct
connection of positive and negative poles with the
multimeter.
If the starter relay clicks and connected, the
starter relay is OK.
When there is no voltage of 12V, they are not
connected, the starter relay is OK.
Note: Do not apply battery voltage on the starter
relay for more than 2 seconds. This will result in
overheating or damaging the relay coil.
Measure the coil resistance with the multimeter.
If the resistance exceeds the specified value,
replace the starter relay.
The multimeter is set to 1x10Ω.
Starter relay coil resistance: 3-5Ω