won't shut off ?

omcmike

Recruit
Joined
May 27, 2005
Messages
3
Hello, I have a 17' 1986 Renken with a 2.5 omc i/o. Sometimes but not all the time,i turn off the key and the motor keeps running. I've been asking around and someone said it could be backfeeding from the alt. Thanks, Mike
 

jeff13601

Chief Petty Officer
Joined
Apr 30, 2005
Messages
593
Re: won't shut off ?

Does it run smoothly or chug and then stall when you turn it off?
 

omcmike

Recruit
Joined
May 27, 2005
Messages
3
Re: won't shut off ?

It runs smooth.I replaced the ignition switch.but did not work
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: won't shut off ?

Disconnect the small wires to the alternator and try it. Leave the large power wire (Orange I think) hooked up.
 

omcmike

Recruit
Joined
May 27, 2005
Messages
3
Re: won't shut off ?

yes that worked,I unpluged the small wire and it shut down.
 

Bt Doctur

Supreme Mariner
Joined
Aug 29, 2004
Messages
19,454
Re: won't shut off ?

your backfeeding, time to have the alt. rebuilt. most likely a bad diode
 
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