Overview: One of the major things that separates the CB360 from the CL and CJ360’s as well as the CB350 is the introduction a front disc brake. This Tokico single piston unit first showed up on the 1974 “G” version, however it became the standard for the CB’s during production. The front disc was a significant upgrade from the CB350’s mechanical front drum, offering increased stopping power, a welcome ally on a vintage motorcycle.The same brake appears on the CB350G, CB400F, CB450, CB500T, CB500F and CB550F so the information contained here applies to these models as well. The difference between the models is the length of the brake hoses in relation to the master cylinder. When ordering replacements make sure you pick the correct hoses for your specific model.This system can be troublesome for many to rebuild as decay often complicates matters. However, the front brake provides 80% of the stopping power on your bike, so let’s make sure it is working at its full potential. There are three areas to address: Master Cylinder, Caliper, and Brake Hoses.
Master Cylinder: This is the FIRST part of the brake system that should be rebuilt, especially if your bike has been sitting for many years. Signs for rebuild include sticking in place, frozen, leaking or loss in pressure after sitting (handle feels squishy then firms up). A small set of snap ring pliers will make the rebuild easier. The inside of the cylinder should be scrubbed well with an oiled green Scotch brite pad on the end of a small rod. Once rebuilt, you can use master cylinder to disassemble the caliper.