Genuine Mikuni 5F21 Jet Needle – Precision Carburetor Tuning For Smooth Performance

If you’re dialing in your Mikuni carb and need that perfect mid-range throttle response, this genuine 5F21 jet needle is what you’re after.

It’s a brand-new, authentic Mikuni part made in Japan, so you know the quality is top-notch.

The 5F21 is a specific taper profile designed for precise fuel metering.

Whether you’re rebuilding a classic bike or tuning a race machine, having the right needle makes all the difference.

Don’t settle for knock-offs—get the real deal and get your engine running smooth.