Johnson 15 2004 User Manual

IGNITION
IGNITION SYSTEM TESTS
STEP 3
IMPORTANT: All ohmmeter tests must be per-
formed with the engine
NOT running.
Insert jumper wires in ignition plate connector, ter-
minals "8" and "C."
DR4622
Calibrate ohmmeter on appropriate scale. Con-
nect between jumpers.
• Meter must show 40 ± 10 ohms.
To test for a grounded condition, connect ohmme-
ter, alternately, between each jumper and a clean
engine ground.
• Any needle movement indicates sensor coil or
leads are grounded.
• Locate and repair ground, or replace sensor
coil.
Power Pack Cranking Output
Twist and remove primary leads from ignition
coils.
Connect number 1 ignition
coil primary lead to
Stevens Number PL-88 Pack Load Adapter,
PIN 507983, red lead. Connect adapter black lead
to a clean engine ground.
If Stevens Number PL-88 is not available, an
adapter can be made using a 10-ohm, 10-watt
resistor,
Radio Shack Number 271-132, or equiva-
lent.
Connect peak-reading voltmeter red lead to
adapter
red lead and meter black lead to a clean
engine ground.
1
1. Load adapter DR4052
Adjust voltmeter to settings listed in following
chart. Crank engine and observe meter. Meter
must show at least:
Model Voltmeter Output
9.9/15 NEG/500 175 V
25/30
POS/500 175 V
After testing number 1 ignition coil primary lead,
test the number 2 ignition coil primary lead.
• If
both primary leads have good output, test
ignition coils. Refer to
Ignition Coil Tests on
p.125.
DR4621 • If one primary lead has no output, replace
power pack.
Complete all circuits disconnected during this test. • If both primary leads have no output, go to
124
Charge Coil Test on p. 122. If charge coil tests
good,
replace the power pack.

Johnson 15 2004 Specifications

General

Brand	Johnson
Model	15 2004
Category	Outboard Motor
Language	English