[Fitment] Carburetor Compatible with Yamaha Zuma YW50 Scooter Moped 2002 2003 2004 2005 2008 2009 2010 2011. [Quality] Made of high-quality material with jets already installed. The main jet is #89, and the slow jet is #38. You may just need to make slight adjustments, this YW50 carb will work well, and keep your engine running smoothly. [Dimention] Intake side: I.D-20mm & O.D-23.5mm, air filter side: I.D-32mm & O.D-38mm. [Installation] Easy to install, but professional installation is highly recommended. [Package Include]: 1 x carburetor. Fitment: Compatible with YAMAHA ZUMA YW50P 2002 Compatible with YAMAHA ZUMA YW50R 2003 Compatible with YAMAHA ZUMA YW50S 2004 Compatible with YAMAHA ZUMA YW50T 2005 Compatible with YAMAHA ZUMA YW50X 2008 Compatible with YAMAHA ZUMA YW50XB 2008 Compatible with YAMAHA ZUMA YW50XL 2008 Compatible with YAMAHA ZUMA YW50YB 2009 Compatible with YAMAHA ZUMA YW50YL 2009 Compatible with YAMAHA ZUMA YW50ZB 2010 Compatible with YAMAHA ZUMA YW50ZY 2010 Compatible with YAMAHA ZUMA YW50AL 2011 Specification: Inner Diameter (intake side): 20mm(0.79") Outer Diameter (intake side): 23.5mm(0.93") Inner Diameter (air filter side): 32mm(1.26") Outer Diameter(air filter side): 38mm(1.50") Package Includes: 1 x carburetor Note: Please compare the pictures and compatibility before buying to confirm whether it is suitable for your model, thanks for your understanding. Ombialo is committed to providing you with better products and services.