Mikuni VM28-418, Flat slide 28mm Carburetor Carburetor Size 28mm Mikuni’s TM series carburetors utilize a modern designed flat slide to produce significant performance improvements over round slide carburetors. Air flows faster and smoother due to the more efficient flat slide and jet blocks. These improvements produce a stronger vacuum at the needle jet to offer precise fuel metering and better throttle response. Specifications – Carburetor Mount – Spigot / 33mm Carburetor Intake/Air filter Bell Outside Diameter – 44mm Carburetor Depth x Height x Width – 82x135x76mm Note: Mikuni’s SKU# of this part is VM28-418 even though it is a part of the TM Flat Slide series.