i have same problem i have a pitbike i got of my mate he said he brought a lifan 125 but when i checked the engine number was 154fmi, my mate said he defo brought a lifan 125 engine
i thought i would olny need to change rings and piston if it blowing blue smoke correct me if im wrong, but it blowing white smoke and people have told me it due to water in the system but its an air cooled bike
i got a pit bike of my mate for cheap he told me that it blew white smoke and leaked oil
its an air cooled bike and it blowing out white smoke and oil seems be leaking out the exhaust port and any idea what could cause this