4 pin Plug Adaptor use with certain For Yamaha motorbikes. This adaptor converts a standard 16 pin OBD2 type plug to the For Yamaha 4 pin plug for plugging into the motorbike diagnostic socket for CAN Bus models.
4Pin to 16Pin OBD2 Extension Adapter Cable for Scania Engines&Industrial/Marine
3+4Pin to 16Pin OBD2 Adapter Cable for Older Yamaha Bike,Diagnostic Scanner Tool
4Pin to 16Pin OBD2 Diagnostic Plug Adaptor Cable For Yamaha Motorcycle Bike ATV