Top Quality: CNC-Machined KIPA Carburetor, easy to install. Improve throttle response for better engine Power Output, Pefect Idle and Top Accelerator Status, help to keep your Dirt Bikes & ATVs running at Fantastic Performance. Specification: Carburetor Bore Open size: 26mm, Air Filter Outlet Diameter: 38mm; Manual Choke. Mounting Hole Center to Center size:48mm. This KIPA replacement Carburetor is an engine accessory made from sturdy, tough prime materials that Dirt Bikes enhanced durability and superior reliability. Fitment: Replace for Lifan YX Zongshen Apollo Thumpstar 110cc 125cc 140cc XR50 CRF70 KLX BBR SSR Pit Dirt Bike Engines. Please do match the carburetor sizes and the structure Includes: 1 X New VM22 Carburetor, 1 X Mounting gasket Kit, 1 X Intake Pipe, 1 X Mounting hardware kit, 1 X Carburetor Carbon Dirt Jet Cleaner Tool Kit for future maintence use Due to the age and wear of Bikes, you may need to adjust mixture, idle, and float adjustments. Keep heat, sparks and flame away. Handle fuel only outdoors. Wipe up spills immediately. Manual is not included, But you could find a lot of installation video and manual on tube. Your Powerful Pit dirt bikes deserve A Perfect Carburetor. KIPA Carburetor For Mikuni VM22 26mm Bore With intake air filter gasket & Carbon Dirt Jet Cleaner Tool Kit