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    Wont reach WOT range after tune up

    Ok, after fixing my idling problem, using idle mix screws to keep boat running now I put it in the water and now I have a new problem. The boat idles great, runs great gets up on plane great, but now the max rpm at WOT is right at 4000 rpms. Before changing the plugs, plug wires, fuel filters...
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    OMC 4.3 still with idle issues

    Ok guys, still need a little help here. I have a 93 OMC 4.3. Ran great up until about 3 weeks ago. Coming back to ramp, when slowed to no wake speed, engine stalled at idle. Started back had to feather throttle to keep from stalling. Thought it was a spark plug problem. Changed out plugs...
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    1993 Omc 4.3 cobra idling problems

    I have a 93 OMC 4.3 Cobra and my problem is it will not idle at less than around 1100 RPMs. Anything above that the motor runs fine, just stalls at anything less than 1100. First I changed plugs, they were in pretty bad shape, then checked wires and distributor for spark, all checked out fine...
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    93 OMC 4.3 Cobra stalls at idle

    Hey guys, I have a 93 OMC 4.3 liter. Problem is it will not idle below 1000 rpms. It appears that one cylinder is not firing. Spark plugs changed and no difference. Spark appears to be coming from the wire, but I planned to change the wires next. Compression is good in all cylinders just...
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    93 OMC 4.3 Cobra Valve Cover Blown

    Apparently, when changing the spark plugs on my 93 4.3 OMC Cobra I noticed one cylinder which had not fired in quite some time due to the resistor on spark plug being broken off. Once new plugs were in, I attempted to start motor, upon the first crank of the starter, the motor made a loud...
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