Yamaha F40BWHD - Checking the CDI Unit

IGNITION SYSTEM
8-15
E
–+
ELEC
CHECKING THE CDI UNIT
Measure:
• CDI unit output peak voltage
Below specification → Replace the
CDI unit.
NOTE:
Before measuring CDI unit output peak volt-
age, make sure that no abnormality is
observed on the charge coil and the pulser
coil.
Output peak voltage
B-L
r/min.
Cranking
1,500 3,500
Opened Closed
D.C. V 151 100 123 161
Peak voltage adaptor
YU-39991/90890-03169
2 Pins test harness
90890-06767