Checking The Pulser Coils; Checking The Charge Coil - Yamaha E60HWD Service Manual

Checking the pulser coils

1. Disconnect the CDI unit coupler.
2. Connect the test harness (4 pins) to the
pulser coil.
3. Measure the pulser coil output peak volt-
age. Replace the pulser coil if below
specification.
Digital circuit tester: 90890-3174
Peak voltage adaptor B:
90890-03172
Test harness (4-pins):
New: 90890-06875
Current: 90890-06775
Pulser coil output peak voltage:
White/Red (W/R) — Ground (B)
White/Black (W/B) — Ground (B)
White/Green (W/G) — Ground (B)
Unloaded
r/min
Cranking
DC V 2.0 2.0
Pulser coil resistance
(reference data):
White/red (W/R) — Ground (B)
White/Black (W/B) — Ground (B)
White/Green (W/G) — Ground (B)
117 — 143 Ω
at 20°C (68°F)
69D5G11
69D80070
Loaded
1,500 3,500
6.0 10.0
Ignition and ignition control system

Checking the charge coil

1. Disconnect the CDI unit coupler.
2. Connect the test harness (4 pins) to the
charge coil.
3. Measure the charge coil output peak volt-
age. Replace the charge coil if below
specification.
Digital circuit tester: 90890-3174
Peak voltage adaptor B:
90890-03172
Test harness (4-pins):
New: 90890-06875
Current: 90890-06775
Charge coil output peak voltage:
Positive side: Brown (Br) —
Negative side: Ground (B)
Unloaded
r/min
Cranking
DC V 120 110
Charge coil resistance
(reference data):
Brown (Br) — Ground (B)
149 — 182 Ω at 20°C (68°F)
1
2
3
69D80070
4
5
6
Loaded
1,500 3,500
150 110
7
8
9
8-12