Main nozzle size 60 / M6 DellOrto nozzle

Have you tuned your scooter? Or do you simply want to fine-tune your carburetor? Every tuning change, no matter how small, should result in a change or adjustment to the main jet. The main jet ensures that the exact amount of fuel is always available for pre-mixing. If the main jet is changed, this primarily affects the mid- and upper speed range. If it is too small, the engine will stall under full load and/or run so lean that the piston and cylinder overheat, resulting in cylinder damage. If it is too large, the mixture will become too rich, the engine will run very rough, and can only deliver a fraction of its potential power. The key here is to find the ideal compromise. We offer you...