Mikuni MKA340 Universal JetRef : MK00059A / 1009911

MIKUNI MKA340 JET (Manufacturer part number: 4/042-340) – a carburetor jet designed for riders and mechanics who are concerned with precise carburetion adjustments. This replacement part is made by MIKUNI and is intended to be used in the fuel circuit of carburetors to adjust the fuel flow according to the engine's operational needs.

• Usage: replacement of the main or secondary jet on compatible carburetors, intervention during air/fuel mixture adjustments.
• Audience: riders, tuners, workshops, and DIY enthusiasts who control carburetion (road, track days, engine tuning).
• Practical advantage: allows modification of the mechanical injection size of the carburetor to adapt the engine to altitude, temperature, or mechanical modifications.
• Compatibility: intended for Mikuni carburetors and other compatible models; check diameter and thread before installation.

Keep in mind: a jet should not be chosen randomly. For a reliable adjustment, identify the original reference and adjust the jet size according to manufacturer recommendations or test measurements. A simple yet essential accessory for those who want to master the mixture richness and engine behavior during acceleration or sustained riding phases.