PZ19 Carburetor Fits 50cc 70cc 90cc 110cc 125cc ATV Dirt Bike and Go Kart Horizontal Engine.PZ19 Carburetor fits most ATV Go Kart Dirt Bike, such as , Kazuma,Baja,Coolster 50cc 70cc 90cc 110cc 125cc ATV Dirt Bike and Go Kart Horizontal Engine.PZ19 Carburetor Replacement of most carbs Go kart,Moped Scooter.Inner Diameter (intake side): 20mm Mounting Center to Center: 48mm Outer Diameter(air filter side): 32mm.Engine Opening O.D.: 19mm,Bolt Hole Spacing (engine side) : 48mm (on center).PZ19 CarburetorFits 50cc 70cc 90cc 110cc 125cc ATV DirtBike and Go Kart Horizontal Engine. PZ19 Carburetor fits most ATV Go Kart Dirt Bike, such as ,Kazuma,Baja,Coolster 50cc 70cc 90cc 110cc 125cc ATV Dirt Bike and Go KartHorizontal Engine. PZ19 Carburetor Replacement of most carbs Go kart,MopedScooter.Inner Diameter (intake side): 20mm Mounting Center to Center: 48mmOuter Diameter(air filter side): 32mm. Engine Opening O.D.: 19mm,Bolt Hole Spacing (engine side) : 48mm (on center)