Checking The Front Brake Master Cylinder; Assembling The Front Brake Master Cylinder; Installing The Front Brake Master Cylinder - Yamaha YZF-R1(B) 2012 Service Manual

EAS22510
CHECKING THE FRONT BRAKE MASTER
CYLINDER
1. Check:
• Brake master cylinder
Damage/scratches/wear → Replace.
• Brake fluid delivery passages
(brake master cylinder body)
Obstruction → Blow out with compressed
air.
2. Check:
• Brake fluid reservoir tank "1"
Cracks/damage → Replace.
• Brake fluid reservoir diaphragm "2"
Damage/wear → Replace.
• Brake fluid reservoir diaphragm holder "3"
Cracks/damage → Replace.
3. Check:
• Brake hose "4"
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
1. Install:
• Brake master cylinder kit
EAS22540
INSTALLING THE FRONT BRAKE MASTER
CYLINDER
1. Install:
• Brake master cylinder "1"
• Brake master cylinder holder "2"
Front brake master cylinder
holder bolt
13 Nm (1.3 m·kgf, 9.4 ft·lbf)
TIP
• Install the brake master cylinder holder with
the "UP" mark "a" facing up.
• First, tighten the upper bolt, then the lower
bolt.
2. Install:
• Washers
• Brake hose
• Union bolt
Front brake hose union bolt
30 Nm (3.0 m·kgf, 22 ft·lbf)
4-42
FRONT BRAKE
New
New