Checking The Pulser Coil; Checking The Charge Coil - Yamaha E115A Service Manual

Checking the pulser coil

1. Remove the CDI unit cover.
2. Connect the test harness to the pulser
coil.
3. Measure the pulser coil output peak volt-
age. Replace the pulser coil if less than
specification.
1
Test harness 1: 90890-06871
Pulser coil output peak voltage:
White/red (W/R) – White/yellow (W/Y)
White/black (W/B) – White/green (W/G)
Unloaded
r/min
Cranking
4.8 3.8
DC V
(2.7) (2.2)
( ): Manual start
4. Disconnect the pulser coil coupler.
5. Connect the digital circuit tester to the
pulser coil coupler (pulser coil side).
6. Measure the pulser coil resistance.
Replace the pulser coil resistance if out
of specification.
61U5H11
W/R
W/B W/B
W/Y
W/G W/G
61U80110
Loaded
1,500 3,500
8.8 14.2
Ignition and ignition control system
Pulser coil resistance
(reference data):
White/red (W/R) 2 –
White/yellow (W/Y) 4
White/black (W/B) 1 –
White/green (W/G) 3
256–384 Ω at 20°C (68°F)

Checking the charge coil

1. Remove the CDI unit cover.
2. Connect the test harness to the charge
coil.
3. Measure the charge coil output peak volt-
age. Replace the stator assembly if less
than specification.
1
L
Br Br
B/R
R
R
1
2
61U80120
3
4
5
6
7
8
9
61U80100
8-8