Checking The Spark Plug Cap; Checking The Ignition Coil - SELVA MARINE Wahoo 15 Service Manual

2. Connect the spark plug cap to the special
service tool.
Ignition tester: 90890-06754
3. Crank the engine and check for a spark.
If there is no spark, check the ignition
system.
WARNING
• Do not touch any of the connections of
the special service tool.
• Be sure to install the special service tool
to the spark plug cap so that sparks do
not leak out.
• Keep flammable gas or liquids away,
since this test can produce sparks.
NOTE:
Repeat steps 2–3 for each spark plug cap.

Checking the spark plug cap

1. Remove the spark plug caps from the
spark plug wires by turning the caps
counterclockwise.
2. Measure the spark plug cap resistance.
Replace if out of specification.
6AG3J11
Starting system / Ignition and ignition control system

Checking the ignition coil

1. Disconnect the ignition coil connectors.
2. Remove the spark plug caps from the
spark plug wires by turning the caps
S6AG8020
counterclockwise.
3. Measure the ignition coil resistance.
Replace if out of specification.
8
4. Install the spark plug caps to the spark
plug wires by turning the caps clockwise,
and then connect the ignition coil con-
nectors.
S6AG8030
Spark plug cap resistance:
3.75–6.25 kΩ
Ignition coil resistance:
Primary coil:
Orange (O) – Black (B)
0.26–0.35 Ω at 20 °C (68 °F)
Secondary coil:
Spark plug wire – Spark plug wire
6.8–10.2 kΩ at 20 °C (68 °F)
1
2
S6AG8040
3
8
4
5
6
B
O
S6AG8050
7
8
9
8-22