55 horse johnson lack of power

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DamianThomas

Recruit
Joined
Jun 28, 2003
Messages
1
this is not my motor so i dont know any background on it but it ran fine when we first put it in the water after taking a break it would not run at high speed even at the maxed out forward position it only goes as if it were at half speed
 
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jason_c

Cadet
Joined
Jun 26, 2003
Messages
8
Re: 55 horse johnson lack of power

i can understand where you are comming from,<br />the best bet to fix the problem is rebuild the carbs and replace your plugs,, total cost of about 50 to 60 dollars get any of your parts at a marine dealer or any car auto supply shop....good luck...happy boating
 
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papasage

Senior Chief Petty Officer
Joined
Jan 12, 2003
Messages
785
Re: 55 horse johnson lack of power

if plug is firing i would clean out highspeed jet . take out drain plug run a small wire in through the plug hole the high speed jet is in the back side . i have don this several times on my 64 & 63 . pump bulb to wash out any debree befor putting plug back in
 
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