CNC Easy Adjustable Idle Speed Screw Fit for HONDA SUZUKI KAWASAKI YAMAHA KTM Dirt Bike MX Motocross Enduro Supermoto Off Road Motorcycle ATV Quad UTV Scooter Easy to install.Quickly speed up,Save fuel CNC Easy Adjustable Fuel Mixture Screw Universal modifications Quicker acceleration Saves fuel Size:32mm Universal modifications Quicker acceleration Saves fuel Best sales service Specifications: Material: Aluminum Alloy Style: PWK Chrome Model Fit for: Most Of ATV Quad.Motorcycle.Dirt Bike. Go kart. Moped scooter.Scooters.Cub.UTV.Pocket Bike. Size: 21 mm: 50cc to 100cc engine 24 mm: 50cc to 110cc engine 26 mm: 75cc to 125cc engine 28 mm: 75cc to 125cc engine 30 mm: 100cc to 160cc engine 32 mm: 125cc to 200cc engine 34 mm: 125cc to 250cc engine CG.CB.GY6.Horizontal engine .C series engine. Cub engine . Air-cooled engine. water -cooled engine . 2-stroke/4-stroke engine .50cc-250cc