Does anyone have any experience with the Wizard 4 stroke Bicycle Engine Kit that FiveFlagsMotorbikes is selling? In my quest to build a Motorized bicycle, I have gone from looking at the Whizzers (which are too heavy for my taste), to a Chinese 2 stroke (which pollute too much for me to claim to be "Green"), and I am now looking at the Wizard 4 stroke. Primarily because it's the only frame mounted 4 stroke kit that I can find. Is anyone running one of these? How fast have you been able to go on it? What kind of bike did you build it on? Is it my imagination, or all 4 strokes pull start?