Fast Fred's OMC Mod 50 secrets Thread #2

[velocity85]

Hi guys

Can be either you tell me more about the engines Johnson 60 -65 - 70 -75
I want to work well where I own 65 and I have a boat F4 ss and I watched the subject completely, but please media in detail because I live in a country far I know these secrets speed but who can help me on private or respond explanation and pictures

thank you

[Fast Fred]

the 65 is an older motor, it has no boost port. is it electric shift? you can make a 75hp out of a 70hp. the black box, you want the one with no limiter.

[velocity85]

I have now Yamaha 85 hp engine 0.4 with compressed work Portenq and expanded openings in the Block with light work Head 1 mm Vicenq not try so far, but I like Johnson engines very much want to learn more

[velocity85]

Attachment 52078

Attachment 52079

Attachment 52078

[Fast Fred]

the 3cyl Yamaha is vary similar to the 3cyl Johnson. what shaft length is your 85hp, over hear they only come in L and i think XL transom height.
your pics did not go through i don't think

[velocity85]

it's 20 shaft length

[velocity85]