98
ELECTRICAL AND IGNITION
CHARGING SYSTEM TESTS
ROPE START MODELS
Use a Pea k Read ing Voltmeter, P/N 507972, to
check st ator output volt age. Set meter to the
50 VAC scale.
Disconnect CPS. Remove spark plugs. Make sure
outboard is in NEUTRAL. Refer to SPARK
PLUGS on p. 42.
Disconnect stator (6-pin) co nnector from the
engine harness (6-pin) connector.
Connect Stator Test Adaptor tool, P/N 5005799, to
stator connector.
Connect meter leads to terminals of adaptor tool.
Rotate the flywheel with the st arter rope, using a
long, steady pull.
Stator o utput voltage should be approximately
30 VAC.
IMPORTANT: Index all sp ark plu gs. Refer to
Spark Plug Indexing on p. 42.
CHARGING SYSTEM
TESTS
12 V Charging Circuit
To test the o peration of the regulator in the EMM,
you must be able to run the outboard continuously
at approximately 5000 RPM, such as in a test tank
or on a marine dynamometer.
The test consist s of mo nitoring the system’ s
response to a partially discharged battery. Use a
variable load tester to discharge the battery.
IMPORTANT: The regulator requ ires voltage to
operate. Before proceeding, make sure there is at
least 7 V on th e positive te rminal of the st arter
solenoid.
Disconnect the battery cables at the battery.
Use an in ductive amp meter or con nect a 0 to
50 A ammeter in series between the red wire of
engine wire harness (alternator output from EMM)
and the po sitive (B+) battery cable ter minal of
starter solenoid.
Fluke
†
model 334 or 336, Snap-On
†
model MT110
or EETA501, and va rious oth er amp meters
should be available through local tool suppliers.
Reconnect the battery cables.
A WARNING
To prevent accidental starting of outboard,
disconnect crankshaft position sensor
(CPS).
1. Stator Test Adaptor 006750
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