1987 JOHNSON 40 HP VIBRATION

[JACK ATTACK]

i HAVE RECENTLY ACQUIRED A 1987 JOHNSON 40 HP. IT RUNS GREAT MID RANGE AND HIGH END. lOW END IDLE AND JUST ABOVE SURGES SOMEWHAT. I TOOK THE CARBS APART AND FOUND SOME CRUDE BUT HAVEN'T HAD A CHANCE TO RUN IT SINCE. THE MAIN CONCERN IS VIBRATION. THE THING BUZZES LIKE A VIBRATOR. THE WIFE SAYS SHE DOESN'T MIND IT BUT I'M KIND OF CONCERNED. ANY SUGGESTIONS? I TRIED CHANGING PROPS AND OUT PUT SHAFT IS STRAIGHT. TORE DOWN THE LOWER UNIT AND FOUND NOTHING MAJOR. NO PLAY IN FLYWHEEL SO CRANK FEELS TIGHT. JRTX4@SPRINTMAIL.COM

 

[rogerwa]

Re: 1987 JOHNSON 40 HP VIBRATION

Are you sure its coming from under the hood?? I know my motor sounds horible at idle because it is a 2 cylinder and it shakes a bit which rattles the linkage. When I place my hand on the linkage it sounds much better..

 

[petryshyn]

Re: 1987 JOHNSON 40 HP VIBRATION

I think I'd be hiding the keys from your wife when you're not around....LOL

 

[JACK ATTACK]

Re: 1987 JOHNSON 40 HP VIBRATION

iT'S NOT SO MUCH OF A SOUND AS IS AN ACTUAL VIBRATION THAT YOU CAN FEEL. CHECKED THE MOTOR MOUNT TODAY ON ANOTHER HUNCH THEY FEEL NICE AND TIGHT BUT THE IS SOME (MORE THAN A LITTLE) PLAN IN THE STEERING LINKAGE. ANY MORE THGOUGHTS.<br /><br />p.S. nOTE TO SCHEMATIC i KNOW YOU HAVEN'T SEEN ME BOAT BUT YA HAVEN'T SEEN MY WIFE EITHER. IF SHE WANTS THE KEYS SHE'S GOT EM