Im trying to track down some info on a 100cc 2stroke honda engine from a h100 bike but am not having much luck so I figured if I ask what other engines were made to be 100cc the engine im looking for could be based on the same platform. Im just looking for info like valve settings, which plug it takes and some info about the tubes coming off the carb. Currently the engine is in a quad bike but its spitting on idle which tells me theres some sort of vac leak or its got the wrong plug.

Any help is greatly appreciated, thanks