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    backfires when goosed

    I have a 1980 Merc 470. It starts fine runs fine idles fine and will go up to 4000 rpm with no problem except when you want to take off fast like say water skiing. If I slam the throttle on it backfires and quits but if I apply the throttle slow and steady its ok. Is this acc pump do you...
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    M470 Backfires

    I just got my boat and it sat for 8 years. I rebuilt the Carb changed the filter and gas lines and put in new gas. It starts fine idles fine and goes full speed fine but getting it to WOT is tricky. If I accelerate moderately no problem but if I slam on full throttle it backfires through the...
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    1976 135 Evinrude won't start in water

    I have a 1976 evinrude 135 hp. It will start on the driveway but put it in the water and it won't start. I have replaced all the coils and plugs. the coils looked cracked thats why I replaced them. any suggestions?
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