- 19mm carburetor with filter, 58mm overall length; color options are red or blue - Fits 2-stroke engines 49cc, 66cc, 70cc, and 80cc with no throttle adjustment required - Side screw is the idle adjustment - Jet: normally supplied for a 6mm jet; start with the smallest jet size and tighten without applying excessive force Use scenarios - Replace a worn or unreliable carb on a 49cc pocket bike or scooter to restore smooth idle and consistent performance without needing throttle tuning - Upgrade a small go-kart or mini bike with a 66cc–80cc two-stroke engine to improve air filtration and fuel delivery in a compact 19mm design - Ideal for custom builds or repair projects that require a compact carburetor with an integrated filter for tighter spaces and standard jetting Key benefits - Compact 19mm bore with integrated filter for efficient air-fuel mixing and filtration - Broad compatibility with common small-displacement two-stroke engines - Simple idle adjustment via side screw for easy setup - Straightforward jet installation and sizing guidance to support reliable starting and operation without heavy torque - Durable, space-saving design suitable for installations where weight and size matter Maintenance and setup tips - Begin with the smallest jet size and test performance; adjust as needed to achieve smooth idle and stable running - When installing the jet, avoid excessive tightening to prevent thread damage - Ensure mounting is secure and free of air leaks to maintain consistent fuel delivery