Yamaha EK25BMH Service Manual - Ignition System
Manual is about: Outboard Motor Yamaha EK25BMH
of
230
IGNITION SYSTEM
–
+
ELEC
8-11
E
CHECKING THE CDI UNIT
1. Measure:
•
CDI unit
resistance
Out of specification
→
Check the
peak voltage.
NOTE:
• Digital circuit tester cannot be used for
this check. Use analogue tester.
• CDI resistance values will vary from
meter to meter, especially with elec-
tronic digital meters. For some testers,
polarity of leads is reversed.
Measuring steps
(1) Disconnect the CDI unit
leads from
the wire harness.
(2) Connect the pocket tester (
Ω
× 1K) to
the CDI unit as shown list.
Refer to "CDI UNIT" on page 8-10.
NOTE:
There is a point at which the pointer swings
greatly and swings back. Read the point
where the point has returned to stop.
Pocket tester
90890-03112
1
1