2A-4 - ELECTRICAL and IGNITION 90-817643R1 DECEMBER 1996
! WARNING
When testing or servicing the ignition system, high
voltage is present, be extremely cautious! DO NOT
TOUCH OR DISCONNECT any ignition parts while en-
gine is running, while key switch is on, or while battery
cables are connected.
!
CAUTION
Failure to comply with the following items may result
in damage to the ignition system.
1. DO NOT reverse battery cable connections. The
battery negative cable is (-) ground.
2. DO NOT “spark” battery terminals with battery
cable connections to check polarity.
3. DO NOT disconnect battery cables while engine is
running.
4. DO NOT crank engine when switch box is not
grounded to engine.
A process of elimination must be used when checking the
ignition system without a Multi-Meter/DVA Tester
(91-99750) or a voltmeter (capable of measuring 400 volts
DC, or higher) and Direct Voltage Adaptor (91-89045), as
the switch box and ignition coils cannot be thoroughly
checked with conventional test equipment.
All other components can be tested with an ohmmeter. Be-
fore troubleshooting the ignition system, check the follow-
ing:
1. Make sure that electrical harness and ignition switch
are not the source of the problem.
2. Check that plug-in connectors are fully engaged and
terminals are free of corrosion.
3. Make sure that wire connections are tight and free of
corrosion.
4. Check all electrical components, that are grounded di-
rectly to engine, and all ground wires to see that they
are grounded to engine.
5. Check for disconnected wires, and short and open cir-
cuits.
STATOR TEST
NOTE: Stator can be tested without removing from engine.
1. Disconnect stator leads from switch box.
2. Use an ohmmeter and perform the following tests.
IMPORTANT: If stator is mounted on engine, black sta-
tor lead must be grounded to powerhead when testing.
Connect test lead to black stator lead if stator is re-
moved from engine.
NOTE: Readings are for a cold engine (room temperature).
Resistance will increase slightly, if engine is warm.
3. If meter readings are other than specified, replace sta-
tor assembly.
55/60 MARATHON/SEAPRO – (398-9873A-5 printed
on the stator)
USA S/N 0G277479 and BELOW
BELGIUM S/N (Not Available at Time of Printing)
45 JET, 50/60 ELECTRIC – (398-9710A22,
398-9710A23, or 398-9710A34 printed on the stator)
USA S/N 0G277605 and BELOW
BELGIUM S/N (Not Available at Time of Printing)
NOTE: When servicing a unit listed “Serial Number and
Below”, it is recommended that the flywheel be removed
and the stator part number verified to determine proper
testing applications.
Test Leads Resistance
(OHMS)
Scale Reading
(x_______)
Between Blue
Stator Lead and
Red Stator Lead
(Low Speed)
3600 – 4200
(90 – 140)
3.6 – 4.2
(R x 1000)
Between Red
Stator Lead and
Engine Ground*
(Hi-Speed)
90 – 140 90 – 140
(R x 1)
*If stator is mounted on engine, black stator lead must be
grounded to powerhead when testing. Connect test lead to
black stator lead if stator is removed from engine.
55/60 MARATHON/SEAPRO – (398-9873A21 printed
on the stator)
USA S/N 0G277480 and ABOVE
BELGIUM S/N (Not Available at Time of Printing)
45 JET, 50/60 ELECTRIC – (398-9873A24 printed on
the stator)
USA S/N 0G277606 and ABOVE
BELGIUM S/N (Not Available at Time of Printing)
Test Leads
Resistance
(OHMS)
Scale Reading
(x_______)
Between Blue
Stator Lead and
Red Stator Lead
(Low Speed)
1100 – 1600 1.1 – 1.6
(R x 1000)
Between Red
Stator Lead and
Engine Ground*
(Hi-Speed)
30 – 35 30 – 35
(R x 1)
*If stator is mounted on engine, black stator lead must be
grounded to powerhead when testing. Connect test lead to
black stator lead if stator is removed from engine.
To Next Page
Loading...
