HJ250-4 Mikuni hex head main jets 4/042, size 250

Precision fueling is vital for any performance engine, and these EBC main jets are designed to provide exactly that for Mikuni carburetors. Manufactured by A-BAX Precision Engineering, these 4/042 style hex head jets are built to exacting tolerances. This size 250 jet features a 6mm hex head and M5.3 x 0.9 threads, making it a perfect fit for Mikuni VM series carburetors, including the VM-18, VM24-512, and VM26-606, plus TMX models. Sold as a pack of four, these jets are a great addition to any tuning kit. High-quality brass ensures that the jet won't corrode, maintaining a consistent fuel flow that is critical for maintaining engine health and achieving maximum power output.