Yamaha BLASTER YFS200R Owner's Manual page 257

NOTE:
8 Recommended brake fluid: DOT 4
8 Brake fluid replacement:
9 When disassembling the master cylinder or caliper cylinder, replace the brake fluid. Normally
check the brake fluid level and add fluid as required.
9 On the inner parts of the master cylinder and caliper cylinder, replace the oil seals every two
years.
9 Replace the brake hoses every four years, or if cracked or damaged.
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