Yamaha F150B - Ignition Units and Components; Checking the Ignition Spark; Checking the Spark Plug Wire

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Ignition units and components
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10
A
OL: Indicates on overload
6. Connect the Rectifier Regulator coupler
a and lighting coil coupler.
Ignition units and components
Checking the ignition spark
1. Remove the spark plug wire cover.
2. Disconnect the spark plug caps from the
spark plugs.
3. Connect a spark plug cap to the special
service tool a.
4. Check the ignition spark using the “Sta-
tionary test” of the YDIS. WARNIG! Do
not touch any of the connections of
the special service tool.
5. Remove the special service tool a, and
then connect the spark plug caps.
6. Install the spark plug wire cover.
Checking the spark plug wire
1. Remove the spark plug wire cover.
2. Disconnect the spark plug wires.
3. Measure the spark plug wire resistance.
Replace if out of specification.
Rectifier Regulator continuity
(testing diode mode):
Tester probe
Display value
(reference data)
eh 0.468
ek 0.464
fh 0.468
fk 0.469
gh 0.465
gk 0.471
he OL
hf OL
hg OL
ke OL
kf OL
kg OL
hm OL
km OL
em OL
fm OL
gm OL
mh 0.815
mk 0.816
me 0.464
mf 0.472
mg 0.460
+ –
Ignition tester a: 90890-06754
a
OK
Charging units and components / Ignition units and components