StrontiumEthics
Member
I just built a new motorized bicycle using a black slant head. Sofar everything is mounted up nice and snug, and aligned. However out of curiosity I wanted to go full throttle on my new engine after about 1 tank of gas at 20:1 Ratio of Honda GN2 2 stroke oil. Speed and pickup is great but there is a lot of vibration around half throttle but it then dies away at full throttle. I thought that maybe the aluminum frame is the culprit, but I would like a second opinion...