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Mercury 305 CID - Charging System Inoperative; Noisy Alternator; Engine will Not Crank over

Mercury 305 CID
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TROUBLESHOOTING - 1C-1190-823225--1 1096
Engine Will Not Crank Over
Cause Special Information
Remote control lever not in neutral position
Battery charge low; damaged wiring; loose elec-
trical connections
Circuit breaker tripped
Blown fuse
Ignition switch
Slave solenoid
Faulty neutral start safety switch Open circuit
Starter solenoid
Starter motor
Mechanical engine malfunction
Charging System Inoperative
Cause Special Information
Loose or broken drive belt
Engine RPM too low on initial start Rev engine to 1500 RPM
Loose or corroded electrical connections
Faulty battery gauge Best way to test is to replace gauge
Battery will not accept charge Low electrolyte or failed battery
Faulty alternator or regulator
Refer to Section 4C for complete
“Charging System” diagnosis procedures
Noisy Alternator
Cause Special Information
Loose mounting bolts
Drive belt Worn, frayed, loose
Loose drive pulley
Worn or dirty bearings
Faulty diode trio or stator

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