Hello, having put the engine on my bicycle I need help to get the throttle set right. I seem to have to much slack on both ends. Should there be some slack at the throttle or carb? Motor boggs and hills are not very good. Is this just brake in running? Motor came with no direction about how to adjust carb or how to set engine for best results. Anybody want to tell me how they tuned up for first 500 miles break in? I've done some research on this site and see there are some very good Motor Heads out there! Thanks for any help passed on.