Yamaha XT660R 2004 Service Manual page 194

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FRONT AND REAR BRAKES
3. Fill:
• brake master cylinder reservoir
(with the specified amount of the recom-
mended brake fluid)
WARNING
_
• Use only the designated brake fluid.
Other brake fluids may cause the piston
seals to deteriorate, causing leakage and
poor brake performance.
• Refill with the same type of brake fluid
that is already in the system. Mixing
brake fluids may result in a harmful
chemical reaction, leading to poor brake
performance.
• When refilling, be careful that water does
not enter the brake master cylinder reser-
voir. Water will significantly lower the
boiling point of the brake fluid and could
cause vapor lock.
CAUTION:
_
Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean
up any spilt brake fluid immediately.
4. Bleed:
• brake system
Refer to "BLEEDING THE HYDRAULIC
BRAKE SYSTEM" in chapter 3.
5. Check:
• brake fluid level
Below the minimum level mark a → Add
the recommended brake fluid to the proper
level.
Refer to "CHECKING THE BRAKE FLUID
LEVEL" in chapter 3.
6. Check:
• brake lever operation
Soft or spongy feeling → Bleed the brake
system.
Refer to "BLEEDING THE HYDRAULIC
BRAKE SYSTEM" in chapter 3.
4 - 48
CHAS
Recommended brake fluid
DOT 4