Test Leads
Resistance
(OHMS)
Scale Reading
(x_________)
Between (+) and (-) Coil
Terminals
Between Coil Tower and (-)
Coil Terminal
800-1100**
8-11**
(R x 100)
.02-.04*
(R x 1)
.02-.04*
Test Leads
Resistance
(OHMS)
Scale Reading
(x_________)
Between Brown Trigger Lead
and White/Black Trigger Lead
Between White Trigger Lead
and White/Black Trigger Lead
11-14
(R x 100)
1100-1400
Between Violet Trigger Lead
and White/Black Trigger Lead
1100-1400
1100-1400
11-14
(R x 100)
11-14
(R x 100)
ELECTRICAL and IGNITION - 2A-590-817643R1 DECEMBER 1996
IGNITION COIL TEST
IMPORTANT: Ohmmeter tests can only detect certain
faults in the ignition coil. Replace ignition coil, if ohm-
meter readings (listed in chart, following) are not as
specified. If coil tests OK, and coil is still suspected of
being faulty, use Multi-Meter/DVA Tester (91-99750) or
a voltmeter (capable of measuring 400 volts DC, or
higher) and Direct Voltage Adaptor (91-89045) to thor-
oughly check coil.
1. Disconnect wires from coil terminals.
2. Pull spark plug lead out of coil tower.
3. Use an ohmmeter and perform the following tests.
* The primary DC resistance of these coils generally is less than one
(1) OHM. If a reading resembling a short is obtained, this would be
acceptable.
** Copper wire is an excellent conductor, but it will have a noticeable
difference in resistance from cold to hot temperatures. Reasonable
variations from these readings are acceptable.
4. If meter readings are not as specified, replace ignition
coil.
TRIGGER TEST
1. Disconnect all trigger leads from switch box.
2. Use an Ohmmeter and perform the following tests.
NOTE: Above readings are for a cold engine (room tem-
perature). Resistance will increase slightly, if engine is
warm.
3. If meter readings are not as specified, replace trigger.
ADI Ignition using a RED
Stator with an Adapter
Module
Red stators require an adapter module that is con-
nected between the stator and switch box. Without the
adapter module, the voltage supplied by the stator
would exceed the voltage capability of the switch box.
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