Checking The Front Brake Master Cylinder; Assembling The Front Brake Master Cylinder; Installing The Front Brake Master Cylinder - Yamaha RAPTOR YFM125RA Service Manual

2. Remove:
• Union bolt
• Copper washers
• Brake hose
TIP
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.
• Brake fluid delivery passages
(brake master cylinder body)
Obstruction → Blow out with compressed
air.
2. Check:
• Brake master cylinder kit "1"
Damage/scratches/wear → Replace.
3. Check:
• Brake master cylinder "1"
Cracks/damage → Replace.
• Brake master cylinder reservoir dia-
phragm "2"
Damage/wear → Replace.
4. Check:
• Brake hose
Cracks/damage/wear → Replace.
EAS22520
ASSEMBLING THE FRONT BRAKE MAS-
TER CYLINDER
EWA13520
WARNING
• Before installation, all internal brake com-
ponents should be cleaned and lubricated
with clean or new brake fluid.
• Never use solvents on internal brake
components.
Recommended fluid
DOT 4
EAS22530
INSTALLING THE FRONT BRAKE MASTER
CYLINDER
1. Install:
• Brake master cylinder "1"
Brake master cylinder bracket
bolt
7 Nm (0.7 m·kgf, 5.1 ft·lbf)
TIP
• Install the brake master cylinder holder with
the "UP" mark facing up.
• Engage the indentation "a" in the spacer with
the lobe "b" on the brake master cylinder.
• Install the brake lever "2" at 10 degrees angle
as shown.
• Install the brake master cylinder so that the
gaps between the brake master cylinder and
the brake master cylinder bracket are equal.
4-27
FRONT BRAKE