91 omc 3.0l starts and dies

sunbird 175

Recruit
Joined
Jun 25, 2010
Messages
2
I have a 91 3.0 omc, all it does is, fires quick and dies.I can't get it to stay running. I've gone through the carb, thinking the float was sticking. I still get the same thing. It has electronic ignition, and someone mention that the coil might cause this. I've never heard of a coil doing that. I thought they were good or bad. It has been sitting for the last few years, I put new fuel filter,cap and rotar on it. I put about 10 gallons on new gas in the tank.
Anyone have any ideas.
 

Capt Jimbo

Cadet
Joined
Jun 7, 2010
Messages
19
Re: 91 omc 3.0l starts and dies

Do you have a resistor attached to the coil? I'm not sure if electronic ignitions have that resistor. I do know that if that resistor is bad it will act like it is starting and will die as soon as you let go of the key.
 

sunbird 175

Recruit
Joined
Jun 25, 2010
Messages
2
Re: 91 omc 3.0l starts and dies

No,theres no resistor on the coil. Would it be under the dist. cap? Theres a black piece thats under the rotar on the distribitor would that be it.
 

lonemust

Petty Officer 1st Class
Joined
Apr 2, 2009
Messages
205
Re: 91 omc 3.0l starts and dies

Make sure with the key "on" you haave voltage at the "+" side of the coil. if not start tracing the wire back to ing switch for a break.
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,161
Re: 91 omc 3.0l starts and dies

all it does is, fires quick and dies.I can't get it to stay running.

Ayuh,... Check the sparkplugs,... Is it Firing,..??
Pour an ounce of gas down the carb,+ try it...
If it lights,+ dies, it's still a Carb problem...
 
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