Aeon 350cc, Service Manual

Page: 173 / 192

ELECTRICAL
7-173
Ignition Coil Resistance
5. Check that the secondary coil has the specified resistance.
Secondary coil resistance
5.3 ~ 6.7 k
Ω Ω Ω Ω
at 20 °C (68 °F)
6. If ignition coil resistance reading overdue specified, replace
the ignition coil.
◎
◎ ◎
◎
MAIN SWITCH
Refer to “KEY/ MAIN SWITCH”.
◎ ◎ ◎ ◎
PICKUP COIL
1. Disconnect the A.C. stator coupler from the wire harness.
2. Connect the multi-meter (
Ω
∗ 100) to the pickup coil
terminal.
Probe (+)

L (blue) terminal.
Probe (–) G (green) terminal.
3. Check the pickup coil for the specified resistance.
4. If stator pick up coil resistance reading overdue specified,
replace completely stator.
Pickup coil (CPS) resistance:
110 ~ 500 Ω Ω Ω Ω

at 20 °C (68 °F)
◎ ◎ ◎ ◎
STATOR COIL
1. Resistance Value of Each Stator Leg
Measure the resistance value of each of the three-stator legs:
Y1 to Y2, Y1 to Y3, and Y2 to Y3.
Each should measure
0.3--1.2 ohms
When measuring any of the Yellow wires to ground, the
reading should be infinite (open).
NOTE: If there are any significant variations in ohm’s
readings between the three legs; it is an indication
that one of the three-stator legs maybe weak or failed.
2. Resistance Value of Stator Leg to Ground
Measure the resistance value of each of the stator legs to
ground: Y1 to Ground, Y2 to Ground and Y3 to Ground.
NOTE: Any measurement other than Infinity (open)
will indicate a failed or shorted stator leg.
3. Measure AC Voltage Output of Each
Stator Leg at Charging RPM with a voltmeter set to Volts
AC.
4. Place the red lead on the tester in the 10A jack.
5. Turn the selector dial to the Volts AC position.
6. Start the engine and let it idle.
7. Separately test each ’leg’ of the stator by connecting the
meter leads to the wires leading from the alternator (Y1 to Y2,
Y1 to Y3, Y2 to Y3).
8. Alternator Current Output Reading should be no less than
30--40V AC above 2000 RPM on each ’leg’ .
NOTE: If one or more of the stator leg output AC
voltage varies significantly from the specified value,
the stator may need to be replaced.