Yamaha YW50A Owner's Manual page 43

TIP
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The air fi lter needs more frequent service if you are riding in unusually wet or dusty areas.
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Hydraulic brake system
• When disassembling the master cylinder or caliper cylinder, always replace the brake fl uid. Check the brake fl uid
level regularly and fi ll as required.
• Replace the oil seals on the inner parts of the master cylinder and caliper cylinder every two years.
• Replace the brake hoses every four years or if cracked or damaged.
PERIODIC MAINTENANCE AND ADJUSTMENT
6-7
EAU1722A
EAU17620
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