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How much trouble to swap Johnson 50 hp to Merc 115hp

L

leros

Member
"I have a recently purchased 2

"I have a recently purchased 2000 24' Lowe Pontoon boat with a 50hp Johnson. I have only taken it out once to a lake before I take it up to use/leave it at my place on the Colorado River in AZ. The motor is no speed demon as you could have guessed on a 24' pig of a boat like this one! I would like to be able to pull my kids on a tube or even on skis or a wakeboard.

The boat is rated for a 115hp motor and I have been looking for one to buy. My question is, what problems am I going to run into changing to a Mercury 115 (1995 model). Will I be able to use my existing controls and wiring or will I have to get some different controls? Would it be any easier if I were to find Johnson/Evinrude 115 instead?"
 
"new control box....but why in

"new control box....but why in the ^^(*,do u want a blk mtr?---they are more expensive to work on,..less reliable,and harder to find parts......"
 
"I didn't realize that the

"I didn't realize that they are more expensive to work on, less reliable, etc!!!! What are your thoughts on a 1981 Johnson 115 that is supposed to have a 1985 powerhead. He says it has 120psi on all cylinders. I'm trying to get a model # so I can check shaft length, I need a 20". Do you know if a 1981 has power trim an tilt? Could I adapt my wiring harness and controls to make it work?"
 
excellent eng...dont go by wha

excellent eng...dont go by what he 'says' the comp is....let him show you...some people are less than trustworthy!81 did come w/tnt...see if you can get the control box for that eng...
 
"Thanks for your answers, the

"Thanks for your answers, the problem is that I am in CA and he is in FL so I would have to take his word on the compression. I emailed him about the controls."
 
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