The current common misconception is all big pit bike engines require a pipe adaptor or different exhaust
Basic rule of thumb
Look at the cam cover on the head , if its round its a honda port exhaust
Sure we can go into other configurations , but in general all 140cc are Honda port heads
Basic rule of thumb
Look at the cam cover on the head , if its round its a honda port exhaust
Sure we can go into other configurations , but in general all 140cc are Honda port heads