91 OMC Cobra Trolling Problem

H

Hashman

Recruit
Joined
May 6, 2007
Messages
2
I recently purchased a 19ft Bowrider with a 91 OMC Cobra v6 I/O in it. I have been trolling on lakes at about 2.5 - 3mph for a half an hour to an hour at a time. The engine is really bogged down and has a hard time planing out and getting up to normal speed after trolling. I just replaced the plugs and check the wires and dist cap. The fuel filter was just replaced this year. After a while of riding eventually the motor returns to normal, is there any long term damage that can occur from driving real slow? thanks
 
Bondo

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
70,506
Re: 91 OMC Cobra Trolling Problem

I've put over 650hrs on My V6,........ 90% was Trolling, at 1mph ,+ up........

I rebuilt the Carb,+ Leaned it out in the Low side,........ It Fixed My issue with it.....
The Factory Settings were Way Too Rich.........

What Color,+ Condition were the Plugs in when you pulled them,.... And had you been trolling or running fast just before you pulled them,..??....
 
H

Hashman

Recruit
Joined
May 6, 2007
Messages
2
Re: 91 OMC Cobra Trolling Problem

I replaced the plugs right when I got the boat so I am not sure how the guy before my rode it. When I pulled them they had a lot of carbon build up and where almost solid black in color. Thanks
 
R

Rob454

Chief Petty Officer
Joined
Oct 9, 2005
Messages
508
Re: 91 OMC Cobra Trolling Problem

Youre too rich. Lean the carb out some
Rob
 
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