Yamaha Road Star XV16ARC Owner's Manual page 63

NOTE:
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From 24,000 mi (37,000 km) or 36 months, repeat the maintenance intervals starting from 4,000 mi (7,000 km) or 6 months.
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NOTE:
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The air filter 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 fluid. Check the brake fluid level
regularly and fill 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.
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PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU03907
EAU03057
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