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    70 hp johnson top cylinder trouble

    i have a 1977 70 hp that is having problems under load. i have determined that top cylinder is problem, but can't figure out what. with engine running and plug out but in wire, it fires normal. with engine running and plug in i pull wire and it only seems to fire intermittently. could this be...
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    1977 johnson 70hp bogging at full throttle

    ran fine one day then the next it bogged while cruising at 3/4 throttle, when i came out of the throttle it ran slowly just fine then when i pushed the throttle it bogged again. i have isolated it to the bottom carb or cylinder. i ran motor at high idle and sprayed carb cleaner in each one top...
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