Mikuni MKB175 Universal JetRef : MK00158A / 1010209

MIKUNI JET MKB175 — Manufacturer reference: M10/14-175

Mikuni jet MKB175 designed for fine-tuning the carburetion. A precision part intended to measure the fuel flow in the carburetor bowl, this jet allows for adjusting the air/fuel mixture to refine the mechanical injection mapping specific to compatible MKB-type Mikuni carburetors.

• Brand: MIKUNI — original manufacturing recognized for consistent tolerances.
• Usage: replacement or testing during carburetion adjustment (bench or road testing).
• Designed for adjusting fuel flow through the jet passage — useful during interventions on the bowl, needle, or mixture screw.

Before installation, check compatibility with your carburetor and maintain a clean procedure: install on a cold engine, use appropriate tools, and visually inspect the threads. The choice of a jet should be part of a comprehensive tuning approach (needle, slide, intake, altitude, and usage conditions).

Biker tip: keep the old jet for reference and note the testing conditions (altitude, temperature, fuel type) to quickly identify the effect of the change on the mapping and throttle response.