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73 Evinrude 50 HP OB engine (LARK)

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  • 73 Evinrude 50 HP OB engine (LARK)

    Ok I got my motor running as perfect as I could get it it's running like a champ I checked all the wires and everything else I have no clue why I'm still running at half power!!! but get this when I put it in reverse I have power for days and it sounds like it's hauling butt it sounds the way it should sound when it's at full foward!!! is something installed backwards?? when i had my tune up or my powerpack replaced???

  • #2
    Re: 73 Evinrude 50 HP OB engine (LARK)

    Howdy, Fabuglas.You are probably running on one cylinder.Find out which one isn't making power. Pull each plug wire while it is on the muffs. If it dies, that is a cylinder making power. If nothing happens, that is your dead cylinder.Now check the spark on the dead one. Pull the plug, hold it against the block and turn her over. If you have spark, spray some fuel mix into the carb for the dead cylinder. If it picks up rpm, overhaul that carb.Let us know what you find.Oh, BTW, get a manual.