GY6 Valve Rebuild Kit

Valve Assembly for 150cc GY6 4-stroke QMI152/157 and QMJ152/157 engines. Includes intake and exhaust valves, inner and outer springs, valve shims, valve seals, valve keepers, and valve retainers.


  • Valve Length (intake & exhaust): 66mm
  • Shaft Diameter (intake & exhaust): 5mm
  • Intake Valve Diameter: 27.75mm
  • Exhaust Valve Diameter: 23mm


GY6 QMI/QMJ 152/157