
This part being universal, it may require adaptations
MIKUNI MKD137.5 Jet (manufacturer reference: N102221-1375) — a jet designed for fine tuning of fuel mixture. Ideal for riders who want to adjust the fuel flow at the main jet level, this 137.5 size jet allows for refining the air/fuel mixture to achieve consistent carburation according to usage conditions.
Simple and straightforward, this jet is aimed at users performing maintenance or optimization work on Mikuni carburetors. Whether you are on pistons, cruising on the road, or off-road, it serves to lean or enrich the fuel circuit as needed: throttle response, idle speed, or load behavior.
Installation and maintenance: simple replacement during carburetor disassembly. Be sure to check and clean the jet before installation to avoid clogging and ensure a smooth fuel flow. This product is intended for enthusiasts and workshops looking to finely control engine tuning.