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    1983 Mercruiser 470 Runs fine then loses RPMs slowly then dies

    1983 Mercruiser 470 Carbureted 4 Cylinder. Wellcraft V20 Steplift. Started fine, idle good and smooth, temperature normal. Around 1000 RPMs from dock to main lake for about 10 minutes ran ran and sounded smooth. Took about 15 minutes cruising at 2500-2750 RPMs then all of a sudden the RPMs...
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    Carburetorated engine running rough after day on lake

    Newbie here. 83 Mercruiser. Just had new fuel pump installed & fresh gas. Engine starts up and idles smoothly at start. Idle out to Lake and stop and go to fishing spots we have no problem but when we get back to the no wake zone channels we start running rough almost wanting to stall at...
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