question?

[jhef]

i have a 99 70 johnson, a friend told me i could tune mine up to 90 horse. he said it was same block etc as the 90 , is this true, if so what all has to be done

 

[WillyBWright]

Re: question?

You'll have to contact Harry Potter. The 70 is the largest inline and the 90 is the smallest V. How your friend figures a V-4 has the same block as your inline triple defies all the physical laws I've been taught about.

 

[tashasdaddy]

Re: question?

go here look up the engine diagrams, and parts list and compare. rarely is it financially feasible, and logical.

 

[wilde1j]

Re: question?

If you want (need) more power, get a bigger motor.

 

[jhef]

Re: question?

when i bought motor friend told me it was same block as the 90s , no big deal to me either way, was just curious thats all.. thanks for the replys