50cc costom chopper

was a shwinn stingray pedal bike. was begging for a motor with all that room. 50cc automatic. turn signals, headlight, tail light, new battery, underglow, rear disk break with new pads, o ring chain. is straight piped so it's loud. problems: left turn signal no longer works as well as starter button. have a wiring diagram but no time. also have a trick to get it started as is. runs and drives great as is.