Ignition Units And Components; Checking The Ignition Spark; Checking The Spark Plug Wire - Yamaha F150B Service Manual

Rectifier Regulator continuity
(testing diode mode):
Tester probe
+ –
e h
e k
f h
f k
g h
g k
h e
h f
h g
k e
k f
k g
h m
k m
e m
f m
g m
m h
m k
m e
m f
m g
OL: Indicates on overload
6. Connect the Rectifier Regulator coupler
a and lighting coil coupler.
Charging units and components / Ignition units and components
Display value
(reference data)
0.468
0.464
0.468
0.469
0.465
0.471
OL
OL
OL
OL
OL
OL
OL
OL
OL
OL
OL
0.815
0.816
0.464
0.472
0.460

Ignition units and components

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.
Ignition tester a: 90890-06754
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.
OK
a
5-28
0
1
2
3
4
5
6
7
8
9
10
A