FRONT BRAKE
4-18
NOTICE
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 BRAKE SYS-
TEM” on page 3-22.
6. Check:
• Brake fluid level
The minimum level mark or below
Add.
Refer to “CHECKING THE BRAKE FLUID
LEVEL” on page 3-27.
7. Check:
• Brake lever free play
Refer to “ADJUSTING THE FRONT
BRAKE” on page 3-23.
• Brake lever operation
A softy or spongy feeling
Bleed the brake
system.
Refer to “BLEEDING THE BRAKE SYS-
TEM” on page 3-22.
EAS1SM9142
REMOVING THE FRONT BRAKE MASTER
CYLINDER
TIP
Before removing the front brake master cylin-
der, drain the brake fluid from the entire brake
system.
1. Remove:
• Union bolt
• Copper washers
• Brake hoses
TIP
To drain any remaining brake fluid, place a con-
tainer under the master cylinder and the end of
the brake hose.
EAS1SM9143
CHECKING THE FRONT BRAKE MASTER
CYLINDER
1. Check:
• Brake master cylinder “1”
Damage/scratches/wear
Replace.
• Brake fluid delivery passages “2”
(brake master cylinder body)
Obstruction
Blow out with compressed
air.
2. Check:
• Brake master cylinder kit
Damage/scratches/wear
Replace.
3. Check:
• Brake master cylinder reservoir cap
4. Check:
• Brake hoses
Cracks/damage/wear
Replace.
EAS1SM9144
ASSEMBLING THE FRONT BRAKE MAS-
TER CYLINDER
EWA
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 com-
ponents.
1. Wash the brake master cylinder and the
brake master cylinder kit with brake fluid.
2. Install:
• Primary cylinder cup “1”
• Secondary cylinder cup “2”
Install to the brake master cylinder piston
“3”.
EWA
WARNING
Apply brake fluid to the cylinder cups and
install them as shown. Wrong orientation in
installation causes poor braking perfor-
mance.
Specified brake fluid
DOT 4
1
2
1
2
3
Summary of Contents for YZ250F 2016
Page 4: ......
Page 10: ......
Page 12: ......
Page 16: ...LOCATION OF IMPORTANT LABELS 1 2 EUR ...
Page 17: ...LOCATION OF IMPORTANT LABELS 1 3 AUS NZL ZAF ...
Page 40: ...CLEANING AND STORAGE 1 26 ...
Page 63: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 22 ...
Page 66: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 25 ...
Page 68: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27 ...
Page 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 ...
Page 72: ...CABLE ROUTING DIAGRAM 2 31 EAS1SM9062 CABLE ROUTING DIAGRAM ...
Page 74: ...CABLE ROUTING DIAGRAM 2 33 ...
Page 76: ...CABLE ROUTING DIAGRAM 2 35 ...
Page 78: ...CABLE ROUTING DIAGRAM 2 37 ...
Page 80: ...CABLE ROUTING DIAGRAM 2 39 ...
Page 82: ...CABLE ROUTING DIAGRAM 2 41 ...
Page 122: ...ELECTRICAL SYSTEM 3 38 ...
Page 190: ...CHAIN DRIVE 4 66 ...
Page 286: ......
Page 293: ...CHARGING SYSTEM 8 7 2 AC magneto 3 Rectifier regulator 4 Joint connector 5 Condenser ...
Page 295: ...CHARGING SYSTEM 8 9 ...
Page 321: ...FUEL PUMP SYSTEM 8 35 ...
Page 322: ...ELECTRICAL COMPONENTS 8 36 EAS1SM9331 ELECTRICAL COMPONENTS EAS1SM9332 9 10 1 2 3 4 5 6 7 8 ...
Page 324: ...ELECTRICAL COMPONENTS 8 38 EAS1SM9333 CHECKING THE SWITCHES Y W P Sb 1 2 P Sb Y W ...
Page 325: ...ELECTRICAL COMPONENTS 8 39 1 Engine stop switch 2 Neutral switch ...
Page 334: ...ELECTRICAL COMPONENTS 8 48 ...
Page 342: ...LIST OF SELF DIAGNOSTIC AND FAIL SAFE ACTIONS 9 7 ...
Page 353: ......
Page 354: ...PRINTED IN JAPAN E PRINTED ON RECYCLED PAPER ...