Yamaha FT25B Manual De Servicio página 190

– +
ELEC
8050
IGNITION SYSTEM
8030
CHECKING THE PULSER COIL
Measure:
• Pulser coil output peak voltage
Below specification → Replace the
pulser coil.
Output peak voltage
Red (R) – White (W)
Cranking
r/min
Unloaded Loaded
D.C. V 6
Peak voltage adaptor
YU-39991 / 90890-03169
Test harness (2-pins)
YB-06768 / 90890-06768
Pulser coil resistance
(reference data)
Red (R) – White (W)
300 - 350 Ω at 20 ˚C (68 ˚F)
CHECKING THE CDI UNIT
Measure:
• CDI unit output peak voltage
Below specification → Replace the CDI
unit.
Output peak voltage
Orange (O) – Black (B)
Cranking
r/min
Unloaded Loaded
D.C. V 152
Peak voltage adaptor
YU-39991 / 90890-03169
NOTE:
Before measuring CDI unit output peak volt-
age, make sure that no abnormality is
observed on the charge coil and the pulser
coil.
– 83 –
1,500 3,500
6 17.5 26
1,500 3,500
101 123 161
E
8
8