15 hp Nissan conversion to 20hp

[FTB530]

I read a thread about the 15hp to 20hp conversion BUT cant seem to find it now, it said on a certain model only requires carb change,which model will just a.carb change work on ,I do not want to mess with timing and.changing needles and all that stuff, I have a 2008 nsf15b2.

 

[pvanv]

Re: 15 hp Nissan conversion to 20hp

Not quite. You are confusing information from older 2-stroke models, and the 15C, etc. The 15B2 shares the same block with the 9.9B2 and 18B2, which is 328 cc. That's different from the MFS15/20C, which is 351 cc. You can swap to the 3V9035002M, CARBURETOR ASSY, MFS18B, $197.38, if you want that last 3 hp (20% increase).

 

[FTB530]

Re: 15 hp Nissan conversion to 20hp

Thanks for that info pvanp, might do the carb change , in the future.