HJ270-4 Mikuni hex head main jets 4/042, size 270

For serious tuning on Mikuni carburetors, these EBC hex head main jets are an essential component. Manufactured by A-BAX Precision Engineering, these 4/042 style jets are built to provide the exact fuel flow required for high-performance applications. This size 270 jet features a 6mm hex head and M5.3 x 0.9 threads, fitting Mikuni VM series carburetors like the VM-18, VM24-512, and VM26-606, as well as TMX models. Sold as a pack of four, these jets allow for precise adjustments to your main fuel circuit. The precision-machined brass construction ensures that each jet is identical, providing the consistency you need to dial in your bike for any conditions or performance modifications.