No Bogging or Stalling: The carburetor features a vacuum-diaphragm actuation mechanism. In contrast to Slide Carburetors, this design enables precise, automatic regulation of airflow—thereby mitigating engine stalling attributable to overly rich fuel-air mixtures during abrupt throttle opening Instant Throttle Response: Built-in accelerator pump delivers immediate fuel enrichment; eliminates flat spots and hesitation for crisp takeoff and passing Smooth Linear Powerband: Precise air-fuel ratio control across the entire RPM range. Delivers smoother cruising and better fuel efficiency than Slide Carburetors, ideal for both city commuting and long-distance touring Fuel Overflow Protection: Built?in overflow drain nipple discharges excess fuel, effectively avoid cylinder flooding risk and bring safer running condition for your motorcycle Package: 1x Carburetor, 2x Fuel Lines, 1x Fuel Filter, 1x Brush Set, 2x Spark Plug, 3x Main Jets (#180 185 190) and 3x Slow Jets (#42 45 48) Our carburetor is equipped with #170 stock main jet and #45 stock slow jet Services: One Year, For any reason you're not completely satisfied, you can ask for a refund or replacement