MIKUNI Super/HP Carburetor Series Needle Valve Kit MK-BN44 NV 1

If you're running a carbureted high-performance engine, fuel delivery consistency directly impacts throttle response and peak power output. This MIKUNI needle valve kit eliminates pop-off issues that plague stock setups, allowing you to lean on higher fuel flow without sacrificing atomization. It's the precision tuning component that separates dialed-in carbs from ones left on the table.

The MK-BN44 NV 1 kit pairs a 2.5-diameter needle valve with dual spring options—an 80-gram spring and a 65-gram N-S spring—giving you the flexibility to dial in your fuel curve across different RPM ranges and boost conditions. Built to MIKUNI's manufacturing standards in Japan, this kit transforms your Super BN carb from a bolt-on restrictor into a component-level tuning tool.

• Fits 38mm carbs
• Fits 44/46mm carbs
• 2.5 needle valve diameter
• 80g spring included
• 65g N-S spring included
• Reduces pop-off surge
• Increases fuel flow capacity
• High-performance applications
• Made in Japan
• MPN: MK-BN44 NV 1