Description

Fine-tuning your carburetor’s mid-range performance starts with the right needle jet. The MIKUNI VM38/41-P-6 gives you precise control over fuel delivery in the critical 1/4 to 3/4 throttle range—the zone where most real-world riding happens. If your bike feels sluggish off-the-line or stumbles during acceleration, a properly sized needle jet is often the overlooked solution that transforms drivability.

This genuine MIKUNI component is engineered in Japan and features precision-stamped series and size identification for guaranteed fitment and consistent performance. Whether you’re chasing peak power or simply dialing in a smooth, responsive throttle response, selecting the correct needle jet size (indicated by the alphabetic/numeric designation) ensures your carb tuning efforts actually stick.