Service manual

7-18
E
– +
ELEC
IGNITION SYSTEM
2. Measure:
• Pulser coil output peak voltage
Below specification
→
Replace the
pulser coil.
NOTE:
To crank the engine, connect the engine shut-
off cord (lanyard), and then press the start
switch and engine stop switch simultaneously.
3. Measure:
• Lighting coil output peak voltage
Below specification
→
Replace the light-
ing coil.
NOTE:
To crank the engine, connect the engine shut-
off cord (lanyard), and then press the start
switch and engine stop switch simultaneously.
Test harness (3 pins):
YB-06791/90890-06791
Pulser coil output peak voltage:
White (W) – Black (B)
Red (R) – Black (B)
r/min
Unloaded Loaded
Cranking 2,000 3,500
V4 42338
Test harness (3 pins):
YB-06770/90890-06770
Lighting coil output peak voltage:
Green (G) – Green (G)
r/min
Unloaded Loaded
Cranking 2,000 3,500
V9 81112