Ignition Switch

H

hhornig

Seaman Apprentice
Joined
May 4, 2011
Messages
45
My ignition switch on my Mercruiser I/O went out and I replaced it with a generic one which looked exactly the same. The engine starts, but as soon as I release the key off solenoid the engine quits. I have power to the "I" contact with the switch on. The switch is a 3-lug switch marked with "I", "B", and "S". I am pretty confident I have it connected correctly. Any suggestions?
 
Bondo

Bondo

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Staff member
Joined
Apr 17, 2002
Messages
70,525
Re: Ignition Switch

hhornig said:
My ignition switch on my Mercruiser I/O went out and I replaced it with a generic one which looked exactly the same. The engine starts, but as soon as I release the key off solenoid the engine quits. I have power to the "I" contact with the switch on. Any suggestions?
Click to expand...

Ayuh,... So the switch is passing power to the "I" circuit,..??
It ain't getting to the motor....

Follow the power, 'n see where it stops...
Possibly, the cannon plug is corroded inside, take it apart, 'n clean it...
 
Don S

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Ignition Switch

What's the serial number of your engine, or year and type of ignition system?
Sounds like you may have a defective resistor wire if you have a points ignition.
 
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