HJ280-4 Mikuni hex head main jets 4/042, size 280

These EBC Mikuni hex head main jets are essential for fine-tuning your fuel mixture to get the best performance out of your carburetor. Manufactured by A-BAX Precision Engineering, these size 280 jets are built to tight tolerances for consistent flow. They are designed to fit a wide range of Mikuni setups, including VM, VM-18, VM24-512, and VM26-606 models, as well as TMX carburetors. Whether you are adjusting for altitude or performance modifications, having the right jetting is key to a smooth-running engine. These are sold as a pack of four, ensuring you have enough for multi-carb setups or spares for the workshop bench.