Alternator Charging Coil; Alternator Lighting Coil; Resistor Check - Sym JET 4 R 50 Series Service Manual

16. ELECTRICAL EQUIPMENT

Alternator charging coil

Caution
The check of alternator charging coil and
illumination coil can be done when the
alternator is mounted on engine.
Check
Remove the 3P connector of the alternator.
Measure the resistance between the white
wire on the alternator and frame ground with
a multi-meter.
Standard: 0.6±0.1Ω (20℃)
Replace the alternator charging coil if the
measured value exceeds standard.

Alternator lighting coil

Check
Remove the 3P connector of the alternator.
Measure the resistance between the yellow
wire on the alternator and frame ground by
multi-meter.
Standard: 0.8±0.1Ω (20℃)
Replace the alternator lighting coil if the
measured value exceeds standard.

Resistor check

Remove the front cover.
Measure the resistance between the resistor
wire (green/black) and frame ground.
Standard: 5Ω/5W: 4.5~5.5(green/black)
Standard: 7.5Ω/30W: 7.0~8.0(pink)
16-10
Charging coil
by-star
connector
SYM
Auto
light coil
connector
Pulse generator
connector
resistors