How tight should the rear wheel be? When i tighten it as tight as i can, the wheel wouldn't turn. If i don't have it as tight, the wheel wiggles therefore moving the gear. The gear on the engine becomes unparalleled to the gear on the wheel causing the chain to break. I've went through 3 pocket bike chains in the first 3 months of my purchase. It is a used pocket bike, might be missing parts, its a "Lucky 7". I would like someone to help me out. Much appreciated.
