Removing The Front Brake Master Cylinder; Checking The Front Brake Master Cylinder - Yamaha XV19SW Service Manual

2. Remove:
• Front brake caliper
3. Install:
• Brake pads
• Brake pad spring
• Brake pad pin
• Brake pad clips
• Front brake caliper
• Brake hose guide
Brake caliper bolt
40 Nm (4.0 m·kg, 29 ft·lb)
Brake hose holder bolt
10 Nm (1.0 m·kg, 7.2 ft·lb)
®
LOCTITE
Refer to "REPLACING THE FRONT BRAKE
PADS" on page 4-37.
4. Fill:
• Brake master cylinder reservoir
(with the specified amount of the recom-
mended brake fluid)
Recommended fluid
DOT 4
EWA13090
WARNING
• Use only the designated brake fluid. Other
brake fluids may cause the rubber 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 fluid reservoir. Water
will significantly lower the boiling point of
the brake fluid and could cause vapor lock.
ECA13540
CAUTION:
Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean up
any spilt brake fluid immediately.
5. Bleed:
• Brake system
Refer to "BLEEDING THE HYDRAULIC
BRAKE SYSTEM" on page 3-22.
6. 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" on page 3-20.
7. Check:
• Brake lever operation
Soft or spongy feeling → Bleed the brake sys-
tem.
Refer to "BLEEDING THE HYDRAULIC
BRAKE SYSTEM" on page 3-22.
EAS22490
REMOVING THE FRONT BRAKE MASTER
CYLINDER
NOTE:
Before removing the front brake master cylinder,
drain the brake fluid from the entire brake sys-
tem.
1. Remove:
• Front brake hose union bolt "1"
• Copper washers "2"
• Front brake hose "3"
NOTE:
To collect any remaining brake fluid, place a
container under the master cylinder and the end
of the brake hose.
EAS22500
CHECKING THE FRONT BRAKE MASTER
CYLINDER
1. Check:
• Brake master cylinder "1"
Damage/scratches/wear → Replace.
4-40
FRONT BRAKE
1
2
3