Service manual

STARTING SYSTEM SERVICE MANUAL NUMBER 26
Page 4A-10 90-861329--1 MARCH 1999
Slave Solenoid Identification
Types
There are two types of slave solenoids (“standard” or “switch”) used on MerCruiser engines.
These engines use a standard type solenoid; do not substitute a switch type solenoid.
The other engines use a slave solenoid to energize the starter motor solenoid. Some model
engines use the small terminal on the “switch type” solenoid for ignition by-pass during the
starting of the engine. Because of this, be sure to use correct type of slave solenoid for re-
placement.
Standard Type Slave Solenoid
a
b
c
d
e
a
c
b
74581
Starting Position Off Or Run Position
a-From Key Switch (12 Volts In Start Position)
b-To Ground
c-12 Volts From Battery
d-0 Volts From Starter
e-12 Volts To Starter
Switch Type Slave Solenoid
74582
b
a
c
d
e
f
g
b
a
c
Starting Position Off Or Run Position
a-From Key Switch (12 Volts in Start Position)
b-Mounting Bracket and Ground
c-12 Volts from Battery
d-0 Volts To Starter
e-0 Volts To Ignition Coil
f-12 Volts To Starter
g-12 Volts To Ignition Coil
INDEX