
97
ELECTRICAL AND IGNITION
STATOR TESTS
6
STATOR TESTS
The stator consists of 3 windings (4 poles each)
on a 5 inch diameter core and gene rates an out-
put vo ltage of 55 VAC (1 100 watt s maximum).
This voltage is converted by the
EMM
to p rovide
12 VDC for battery charging (3 to 5 A at 500 RPM
and 25 A from 3000 RPM to WOT ) and 55 VDC
for fuel injector, and fuel and oil pump operation.
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 9 and 1)
•
Brown/white and brown (pins 10 and 2)
•
Orange/white and orange (pins 11 and 3)
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
E
LECTRIC
S
TART
M
ODELS
Use a digit al multimeter to che ck st ator outp ut
voltage. Set meter to read 110 VAC output.
Disconnect CPS.
Disconnect st ator (6-pin) con nector from th e
engine harness (6-pin)
connector.
Connect Stator Test Adaptor tool, P/N 5005799, to
stator connector.
Connect meter leads to terminals of adaptor tool.
With a fu lly charged battery, crank outb oard (300
RPM minimum) and observe meter reading:
•
30 VAC at 300 RPM
•
40 VAC at 400 RPM
•
55 VAC above 500 RPM
Stator Winding Resistance Specification
Yellow & Yellow / white
.670 ± 0.020
Ω
@ 73°F (23°C)
Brown & Brown / white
.670 ± 0.020
Ω
@ 73°F (23°C)
Orange & Orange / white
.670 ± 0.020
Ω
@ 73°F (23°C)
1.
EMM
J2 Connector
002462
1
A
WARNING
To prevent accidental starting of outboard,
disconnect crankshaft position sensor
(CPS).
1.
Stator Test Adaptor
002396
1
Содержание E-Tec 40 HP
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