MIKUNI Needle Jet 990-793-004-P-4

Fine-tuning your carburetor's mid-range performance requires precision, and the MIKUNI Needle Jet 990-793-004-P-4 delivers exactly that. This genuine Mikuni component gives you direct control over fuel metering in the critical 1/4 to 3/4 throttle range—where most street and track driving happens. When your carb feels sluggish or overly rich at part throttle, swapping to the correct needle jet size is often the quickest path to responsive, clean power delivery.

As a tuning fundamental, needle jets work in concert with your needle and clip position to dial in the perfect fuel-air ratio across the throttle sweep. Genuine Mikuni units are precision-manufactured in Japan and clearly stamped with size and series identification, ensuring you install the exact specification your application requires.

• Genuine Mikuni component
• Made in Japan
• Size-coded identification
• Alphabetic/numeric sizing
• Mid-range fuel metering
• 1/4–3/4 throttle tuning
• Bolt-on installation
• MPN: 990-793-004-P-4