Johnson J10RLSRD Service Manual page 124

Calibrate ohmmeter on appropriate scale. Con-
nect between jumpers. Meter must show:
• 9.9/15
R,
25130 -
900
±
100 ohms.
• 9.9/15
(accessory stator, electric) - 760
±
80
ohms.
To test for a grounded condition, connect ohmme-
ter, alternately, between each jumper and a clean
engine ground.
• Any needle movement indicates charge coil or
leads are grounded.
• Locate and repair ground, or replace charge
coil.
DR4619
Complete all circuits disconnected during this test.
Sensor Coil Test
STEP 1
Disconnect 5-pin
Amphenol
connector between
ignition plate and power pack.
Set peak-reading voltmeter to:
• 9.9/15 -
"NEG" and "50," or "SEN" and "50" on
Stevens CD-77 meter.
• 25/30 - "POS" and "50," or "SEN" and "50" on
Stevens CD-77 meter.
Alternately, connect voltmeter between ignition
plate connector terminals "B," "C," and a clean
engine ground. Crank engine and observe meter
at each connection.
• Any reading indicates sensor coil or leads are
grounded.
• Locate and repair ground, or replace sensor
coil.
• If no reading is indicated, go to STEP 2.
IGNITION
IGNITION SYSTEM TESTS
DR4621
STEP 2
I
Set peak-reading voltmeter to:
• 9.9/15 -
"NEG" and "50," or "SEN" and "50" on
Stevens
CD-77 meter.
• 25/30 - "POS" and "50," or "SEN" and "50" on
Stevens
CD-77 meter.
Attach voltmeter black lead to ignition plate con-
nector, terminal "C." Attach meter red lead to ter-
minal "B."
DR4622
Crank engine and observe meter.
• If meter shows 1.5 V or higher, go to Power
Pack Cranking Output on p. 124.
• If meter shows less than 1.5 V, check condition
of wiring and connectors.
• If wiring and connector condition is good, go to
STEP 3.
123
E
o
U
Qj
)(
~
Qj
~
ii
E