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  1. C

    1993 OMC 7.4L King Cobra

    Hi guys. Had the boat out and ran at about 30 miles per hour and ran great. Opened her up to about 4,200 RPM's on the way back to dock and when I pulled back down to the 5 MPH zone, she sputtered and would blow out black smoke and die. Could finally re-start if opened throttle all the way. I...
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