Yamaha VX110 Sport Service Manual page 243

– +
ELEC
IGNITION SYSTEM
2. Measure:
• Pickup coil output peak voltage
Below specification → Replace the
pickup coil.
Above specification → Replace the
ECM.
Test harness (3 pins):
New: YB-06877
Current: YB-06777
Test harness HM090-3 (3 pins):
New: 90890-06877
Current: 90890-06777
Pickup coil output peak voltage:
White/black (W/B) –
Black/orange (B/O)
Unloaded
r/min
Cranking
V 8.0
NOTE:
To crank the engine, connect the engine shut-
off cord (lanyard) to the engine shut-off switch,
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.
Test harness (3 pins):
New: YB-06870
Current: YB-06770
Test harness SMT250-3 (3 pins):
New: 90890-06870
Current: 90890-06770
Lighting coil output peak voltage:
Green (G) – Green (G)
r/min
Cranking
V 7.8
7-16
Loaded
2,000 3,500
6.9 19.4 25.1
Unloaded
2,000 3,500
24.5 41.6
E