64mm Valve Assembly for 50cc 4-stroke QMB139. Includes intake and exhaust valves, inner and outer springs, valve washers, valve seals, valve keepers, and valve retainers.
64mm Valve Assembly for 50cc 4-stroke QMB139. Includes intake and exhaust valves, inner and outer springs, valve washers, valve seals, valve keepers, and valve retainers.