Yamaha BWS YW100E Owner's Manual page 32

PERIODIC MAINTENANCE AND MINOR REPAIR
* Since these items require special tools, data and technical skills, they should be serviced by a Yamaha dealer.
NOTE:
8 The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
8 Hydraulic brake system
9 When disassembling the master cylinder or caliper cylinder, always replace the brake fluid. Check the
brake fluid level regularly and fill as required.
9 Replace the oil seals on the inner parts of the master cylinder and caliper cylinder every two years.
9 Replace the brake hoses every four years or if cracked or damaged.
6-5
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