MIKUNI Needle Jet 990-793-003-P-5

Precise carburetor tuning is the foundation of responsive throttle control and optimal fuel atomization across the mid-range throttle band. The MIKUNI Needle Jet 990-793-003-P-5 is an OEM Mikuni component engineered for fine-tuning fuel delivery between 1/4 and 3/4 throttle opening—the range where most riders spend their time. If your carburetor feels sluggish off-idle or you're chasing that perfect throttle transition, swapping needle jets is one of the most direct ways to dial in your jetting without a full carb rebuild.

As a genuine Mikuni part manufactured in Japan, this needle jet maintains strict tolerances and material specifications that ensure consistent performance across fuel and air conditions. The inside diameter is precisely sized (indicated by the alphanumeric code) to control fuel flow through the needle taper, making this a critical tuning component for anyone serious about carb calibration.

• Genuine Mikuni component
• MPN: 990-793-003-P-5
• Tunes 1/4–3/4 throttle range
• Stamped identification included
• Made in Japan
• Sized diameter code system
• Direct bolt-in installation
• Works with Mikuni carburetors