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Johnson J10RSUR

Johnson J10RSUR
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93
IGNITION
IGNITION SYSTEM TESTS
5
STEP 2
Set peak-reading voltmeter to:
9.9/15 – "NEG" 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."
Crank engine and observe meter.
If meter shows 1.5 V or higher, go to Power
Pack Cranking Output on p. 94.
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.
STEP 3
IMPORTANT: All ohmmeter tests must be per-
formed with the engine NOT running.
Insert jumper wires in ignition plate connector, ter-
minals "B" and "C."
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.
Complete all circuits disconnected during this test.
DR4622
1.5 V
DR4622
DR4621
40 Ω
Ω

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