129
ELECTRICAL AND IGNITION
IGNITION SYSTEM TESTS
6
Stator Tests
The stator consists of 3 windings (4 poles each)
on a 5 inch diameter core and generates an out-
put voltage of 55 VAC (1100 watts maximum).
This voltage is converted by the
EMM
and used to
provide 12 VDC for battery charging (3 to 5 A at
500 RPM and 25 A at WOT) and 55 VDC for fuel
injector, fuel and oil pump operation. The ignition
module of
EMM
is also powered by the 55 VDC
output.
Stator Resistance Tests
Disconnect the battery cables at the battery. Use
an ohmmeter to check resistance of stator wind-
ings.
STEP 1
Disconnect
EMM
J2 connector from
EMM
.
Calibrate ohmmeter to appropriate scale and con-
nect 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 than 2 ohms is
acceptable. Make sure meter is calibrated to read
1 ohm or less.
STEP 2
To check for a grounded condition, connect one
meter lead to ground wire and alternately connect
the other meter lead to each stator wire. Meter
should read no continuity. If meter reads continu-
ity, replace stator due to grounded winding.
Stator Voltage Output Test
Use a voltmeter to check the stator output voltage.
Set meter to read 55 VAC output.
Disconnect CPS.
Disconnect stator (6-pin) connector from the
engine harness (6-pin)
connector.
Connect Stator Test Adaptor tool, P/N 5005799, to
stator connector.
Connect meter leads to connector leads 1 and 6.
With a fully charged battery, crank outboard (300
RPM minimum) and observe meter reading.
1.
EMM
J2 Connector
002462
Stator Winding Resistance Specification
Yellow & Yellow / white
.670 ± .020
Ω
@ 73°F (23°C)
Brown & Brown / white
.670 ± .020
Ω
@ 73°F (23°C)
Orange & Orange / white
.670 ± .020
Ω
@ 73°F (23°C)
1
WARNING
To prevent accidental starting of outboard,
disconnect crankshaft position sensor
(CPS).
1.
Stator Test Adaptor
002396
Stator Voltage Output
(Measured between terminals 1 and 6)
30 VAC at 300 RPM
40 VAC at 400 RPM
55 VAC above 500 RPM
1
Summary of Contents for E-tec 75 HP
Page 1: ......
Page 233: ...233 POWERHEAD POWERHEAD VIEWS 10 POWERHEAD VIEWS Port Short Block Starboard Short Block ...
Page 234: ...234 POWERHEAD POWERHEAD VIEWS Port Dressed Powerhead Starboard Dressed Powerhead ...
Page 235: ...235 POWERHEAD POWERHEAD VIEWS 10 Front ...
Page 236: ...236 POWERHEAD POWERHEAD VIEWS Rear ...
Page 237: ...237 POWERHEAD POWERHEAD VIEWS 10 Top ...
Page 298: ...S 2 ...
Page 344: ......