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    Johnson 70hp 1978 model have bogging down problem

    So I've got this old johno starts fine idles beautiful in the water but as soon as I put it in gear it will cruise for a while fine but if I try to throttle it's bogs down and trys to stall if u press choke or pump throttle it gets over it and goes like a dream so to try fix this problem I have...
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    1978 johnson 70etl78c running issues need help please

    hi all im only new to this forum so any help would be good i recently bought and old coast guard boat with an old 1978 70 hp on it when i got it was told carbys and water pump had been changed and since then wouldnt run, I found broken earth wire from motor so replaced + and - cables also...
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