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Mercury 40 Service Manual

Mercury 40
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CHARGING AND STARTING SYSTEM
Page 2B-30 90-828631R3 MARCH 1999
CHECKING POSITIVE BRUSHES AND TERMINALS
1. Connect ohmmeter (R x 1 scale) leads between positive brushes.
2. Ohmmeter must indicate full continuity (zero resistance). If resistance is indicated,
check lead to positive terminal solder connection. If connection cannot be repaired,
brushes must be replaced. Refer to “BRUSH REPLACEMENT”.
11673
a
a-Positive Brushes
TESTING NEGATIVE BRUSHES FOR GROUND
Set ohmmeter to (R x 1 scale). Place one lead of ohmmeter on the negative brush and the
other lead on the end cap (bare metal). If the meter indicates NO continuity, replace the neg-
ative brush. Repeat this procedure on the other negative brush.
b
a
a-Negative (-) Brushes
b-End Cap

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Mercury 40 Specifications

General IconGeneral
Horsepower40 hp
Starting SystemElectric
SteeringRemote
Fuel Induction SystemEFI (Electronic Fuel Injection)
Shaft Length20"
Full Throttle RPM Range6000

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