Mikuni MKA90 Universal JetRef : MK00095A / 1009947

MIKUNI MKA90 JET (Manufacturer part number: 4/042-90) — replacement jet designed for Mikuni carburetors. A simple yet essential part, it allows for the adjustment of fuel flow in the fuel circuit to achieve consistent and responsive carburation on the road as well as on the track.

• Brand: MIKUNI
• Category: Jet
• Use: replaces a worn jet or allows for fine-tuning the mixture during carburetion adjustment
• Target audience: motorcyclists, mechanics, and tuners working on Mikuni carburetion
• Advice: check compatibility with your carburetor model and note the current size before replacement

This jet fits into the toolkit of the rider concerned with the air/fuel balance: it facilitates adjustments for idle, mid-range, and full throttle when working on carburation. The replacement should be done cleanly and, if necessary, complemented by adjustments to the needle or mixture screw to achieve optimal engine response. If in doubt, consult a specialized workshop for precise and secure tuning.