Description

The Brass Carburetor Main Jet is the heart of the fuel system for Honda GX240 (8 HP) and GX270 (9 HP) engines. While these engines share many design cues with their smaller and larger siblings, the main jet for this specific displacement range is sized to provide a “middle-ground” fuel curve—offering more volume than a GX200 but higher velocity than a GX390 to maintain torque during heavy work.