9.9 Mariner to 15 hp.

[romanspapa]

I have a 15 hp carb. Do I need to modify exhaust ? If so how do I do it? Also do I need to change the reeds?

 

[romanspapa]

Re: 9.9 Mariner to 15 hp.

above is a 1978 japanese mariner 9.9 hp. the 15hp carb is working great.

 

[FlyBoyMark]

Re: 9.9 Mariner to 15 hp.

Does it go any faster?