Those aren't boost ports, they are Boyesen ports, actually "supplemental passages". In 1985 - 86 lawsuit Honda finally admitted they might not have invented them so took out licensing for unlimited use of them, along with settlement for using them in 1978 CRs and later bikes.
@Oscar-sm7fo2 жыл бұрын
Hey Jim! I don't know if you still read these comments but if you do. What paint are you using for these engines? looks grate!
@jimbennettsallnightgarage55862 жыл бұрын
Krylon industrial on this engine. It doesn't hold up that good but it sprays on very good.
@brakhayhurst92145 жыл бұрын
That's an it cylinder !! Just saw the devider in the rear boost
@jimbennettsallnightgarage55865 жыл бұрын
I didnt know that. I got it from a motorcycle junk yard.