1
153stars
Guest
What's the bore new CMB 21RS. Need head button to adapt buggy motor. I bought the red 21RS cooling head.The green head & button would of been right if they all had the same bore. Now I have the carb, collet , header and a red flywheel coming.I might need a custom one made up, who does them. If the bore is the same I'm good ,larger bore I can get it turned down local.The new RS ones must be taller to mate the under side of the cooling head.
Too many more snags and I'll run it in a buggy.
Too many more snags and I'll run it in a buggy.
Last edited: