* INTAKE OAL = 64MM* INTAKE DIA = 18.5MM* INTAKE SHAFT = 5MM* ExHAUST OAL = 64MM* ExHAUST DIA = 16MM* ExHAUST SHAFT = 5MM
valves springs clips kit Set-50cc Engines GY6 50CC 139QMB 139QMA scooter engines.
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