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    83 Mercury 50hp plugs fouling

    I have a 83 Mercury 50hp Blue band. The #1 and # 3 plugs are fouling after about 40 minutes on the water. #2 and #4 are completely clean. The gas had gone bad over the winter. I put in fresh gas and added some sea foam. I have replaced plugs twice, and get the same results. I have good...
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    83 50hp still wont throttle up

    I have a 1983 Mercury 50hp 4 cyl 2 stroke, on a 16ft Lund. I've had no problems with this motor for 20 years. Last year it began not opening up past half throttle.It starts, idles and trolls just fine. First i replaced fuel tank line,bulb, fuel lines to carbs,and sparkplugs. Didn't help. I then...
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    Mercury 50hp- wont throttle up

    My 1983 50hp Mercury, starts and runs at trolling speed fine. When i go to full throttle it bogs at about half throttle. When i hit the choke it will cut out more but not stall. I replaced the fuel lines from tank to carbs. Installed new plugs. Compression is 110-120 on all cyls. Replaced one...
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