MIKUNI Pilot Jet #40 4-Pack VM22/210-40

A pilot jet is the unsung foundation of carburetor tuning—it controls fuel delivery at idle and low throttle positions, directly impacting cold starts, smooth transitions, and overall drivability. If your engine stumbles off idle, hunts RPM, or refuses to start cleanly, a worn or incorrect pilot jet is often the culprit. This genuine Mikuni #40 pilot jet restores precise fuel metering to get your carb back to factory specifications.

Mikuni's OEM pilot jets are engineered to exact tolerances; aftermarket alternatives frequently suffer from inconsistent bore sizing and poor material quality, leading to lean or rich conditions that mask deeper tuning issues. By running genuine Mikuni components, you ensure repeatable, accurate carburetor behavior across your entire fuel map.

• Genuine Mikuni OEM part
• Fits VM, TM, TMX carburetors
• #40 jet size
• Made in Japan
• Precision-machined brass construction
• 4-pack (individual unit sold)
• Controls idle fuel metering
• Bolt-in installation