Here is the 97cc 2-1/2 H.P 4 Stroke Engine I bought from My Father it's off his New Mini bike . It has Less then one Hour run time on it . And I can see how I can tweak in some more Power . Might squeak out another H.P Not sure if I will use this on the 1948 26" Schwinn ? Any thoughts or Ideas on a Build with an Engine Like this ?
YouTube - 97cc Mini Bike Engine‏
YouTube - 97cc Mini Bike Engine‏