OMC 4.3 Running Rough

donwon

Recruit
Joined
May 31, 2010
Messages
5
Just happened out of nowhere, engine stalled switching docks figured it flooded, gave it some time and it would start but only after 5-6 turns in neutral at 1/2 to 3/4 throttle. Once started it was rough at 2000-2500 rpms but running and as soon as I backed it off it would stall. Any ideas as to what to go at first would be greatly appreciated!
 

zbnutcase

Commander
Joined
Sep 19, 2009
Messages
2,055
Re: OMC 4.3 Running Rough

Has it been tuned up this year? Rubbing block on the points worn?
 

a70eliminator

Captain
Joined
Sep 9, 2007
Messages
3,762
Re: OMC 4.3 Running Rough

Sounds like it fouled a plug idleing around the docks, time for a tune up probably.
 

donwon

Recruit
Joined
May 31, 2010
Messages
5
Re: OMC 4.3 Running Rough

I did put new plugs and wires on this spring and changed all the fluids and until now it was running much smoother than last year when I bought it.
 
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