GooDeal arburetor For Honda Crf50 Xr50 Z50 Crf Xr 50 Z50RStock Size Carburetor For Honda Crf50 Xr50 Z50 Crf Xr 50 Z50R New Carb with 1 1/4"" OR 32MM on center mounting holes. Intake Side: 28mm (whre the airbox mounts). Fits: Honda Z50 Z50R Z50A XR50 and many other Japan engines, Chinese Dirt Bikes and Go Carts. This carburetor works great on 49cc engines. Honda Z50 Z 50 R 50cc Dirt Pit Bike 50R MONKEY CHINA XR PZ-10 CARB