merc 20 hp to a merc 25 hp

[andy 1]

I am wondering if any one knows if it is possible to convert a merc 20 hp to a 25 hp. I know this can be done for Yammaha motors. I was given a 25 hp merc motor that a freind found on a lake bottom, he did get it started however it did not run for long so I am wondering if changing the carb and exhaust manifold conversion could be done to my 20 hp merc. Both motors are 1987

andy

 

[ober51]

I am wondering if any one knows if it is possible to convert a merc 20 hp to a 25 hp. I know this can be done for Yammaha motors. I was given a 25 hp merc motor that a freind found on a lake bottom, he did get it started however it did not run for long so I am wondering if changing the carb and exhaust manifold conversion could be done to my 20 hp merc. Both motors are 1987

andy

I don't have any information for you in regards to the technical question but he found a motor on the bottom of a lake and it ran?! Awesome. Why not try and keep it started if it fires up?