Yamaha 2011 WR250RA Owner's Manual page 52

PERIODIC MAINTENANCE AND ADJUSTMENT
TIP
G The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
1 G Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years replace the internal components of the brake master cylinders and calipers, and change the brake
2
fluid.
• Replace the brake hoses every four years and if cracked or damaged.
3
4
5
6
7
8
9
7-6
EAU18670