All models have hydraulically operated disc brakes on the front. The XL600V-H to T (1987 to 1996) models use a single disc and all other models have twin discs.
The rear brake is either a drum type (XL600V-H to L (1987 to 1990) models) or an hydraulically operated disc brake (all other models).
Caution: Hydraulic disc brake components rarely require disassembly. Do not disassemble components unless absolutely necessary. If an hydraulic brake line is loosened, the entire system must be disassembled, drained, cleaned and then properly filled and bled upon reassembly. Do not use solvents on internal brake components. Solvents will cause the seals to swell and distort. Use only clean brake fluid or denatured alcohol for cleaning. Use care when working with brake fluid as it can injure your eyes and it will damage painted surfaces and plastic parts.