96
ELECTRICAL AND IGNITION
STATOR TESTS
STATOR TESTS
The st ator consists of 3 windings (6 poles each)
on a 7 inch diameter core and gene rates an out-
put volt age of 5 5 V AC (1700 watts maximum).
This voltage is converted by the EMM and used to
provide 12 VDC for b attery charging (10 A at 5 00
RPM and 50 A from 2000 RPM to WOT) an d 55
VDC for fuel injector, fuel and oil pump operation.
The ignit ion module of EMM is also powere d by
the 55 VDC output.
Stator Resistance Tests
Use a digital multimeter to check resistance of sta-
tor windings.
Disconnect EMM J2 connector from EMM.
Connect meter leads to the following pins:
• Yellow/white and yellow (pins 17 and 7)
• Brown/white and brown (pins 28 and 8)
• Orange/white and orange (pins 18 and 10)
IMPORTANT: A reading of less th an 2 ohms is
acceptable. Make sure meter is calibrated to read
1 ohm or less.
To che ck for a g rounded winding, conne ct on e
meter lead to ground and alternately connect the
other meter lead to each stator wire. Meter should
read no contin uity. If meter rea ds continuity,
replace stator.
Stator Voltage Output Test
Use a voltmeter to check the stator output voltage.
Set meter to read 110 VAC output.
Disconnect CPS.
Disconnect st ator (6-pin) con nector from t he
engine harness (6-pin) connector.
Connect Stator Test Adaptor tool, P/N 5006211, to
stator connector.
Connect meter leads to terminals of adaptor tool.
With a fu lly charged battery, crank outb oard (100
RPM minimum) and observe meter reading:
• 20 VAC at 100 RPM
• 30 VAC at 150 RPM
• 42 VAC at 200 RPM
• 52 VAC at 250 RPM
• 62 VAC at 300 RPM
Stator Winding Resistance
Yellow & Yellow / white
.512 ± .020 Ω @ 73°F (23°C)
Brown & Brown / white
.512 ± .020 Ω @ 73°F (23°C)
Orange & Orange / white
.512 ± .020 Ω @ 73°F (23°C)
1. EMM J2 Connector 004325
A WARNING
To prevent accidental starting of outboard,
disconnect crankshaft positio n sens or
(CPS).
1. Stator Test Adaptor 004326
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