Prox Main Jet for Mikuni Carburetor Size 410

ProX main jet for Mikuni Carburetor size 410 (part number 47.410 / 47.410/1) is a precision main jet (main jet) from the Japanese brand ProX, perfect for optimizing fuel delivery in Mikuni carburetors.

This high-quality jet belongs to the 4/042-series (large hex style) and is a cost-effective, exact-fit replacement for genuine Mikuni parts. Ideal for tuners, motocross riders, and enduro enthusiasts looking to adjust jetting to specific conditions such as altitude, temperature, modifications (exhaust, airbox, piston) or race setup. An incorrect main jet can cause lean or rich running, so size 410 often provides the ideal balance for mid-to-high-range performance in 125cc to 300cc two-stroke engines.