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ABS (Anti-lock Brake System)
4-77
EAS30197
REMOVING THE HYDRAULIC UNIT
ASSEMBLY
NOTICE
ECA18230
Unless necessary, avoid removing and in-
stalling the brake pipes of the hydraulic unit
assembly.
WARNING
EWA13930
Refill with the same type of brake fluid that is
already in the system. Mixing fluids may re-
sult in a harmful chemical reaction, leading
to poor braking performance.
NOTICE
ECA19790
• Handle the ABS components with care
since they have been accurately adjusted.
Keep them away from dirt and do not sub-
ject them to shocks.
• Do not set the main switch to “ON” when
removing the hydraulic unit assembly.
• Do not clean with compressed air.
• Do not reuse the brake fluid.
• Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean
up any spilt brake fluid immediately.
• Do not allow any brake fluid to contact the
couplers. Brake fluid may damage the cou-
plers and cause bad contacts.
• If the brake pipe flare nuts for the hydraulic
unit assembly have been removed, be sure
to tighten them to the specified torque and
bleed the brake system.
1. Disconnect:
• ABS ECU coupler “1”
TIP
While pushing the portion “a” of the ABS ECU
coupler, pull the lock lever up to release the lock.
NOTICE
ECA20080
Do not use a tool to disconnect the ABS ECU
coupler.
2. Remove:
• Brake hoses
• Brake pipes
TIP
• Do not operate the brake lever and brake pedal
while removing the brake hoses and brake
pipes.
• Do not bend the brake pipe when loosening the
brake pipe flare nuts.
NOTICE
ECA19800
• When removing the brake hoses and brake
pipes, cover the area around the hydraulic
unit assembly to catch any spilt brake fluid.
Do not allow the brake fluid to contact other
parts.
• Before disconnecting the brake pipes from
the hydraulic unit assembly, do not lift up
or move the brake pipes.
3. Remove:
• Hydraulic unit assembly “1”
TIP
To avoid brake fluid leakage and to prevent for-
eign materials from entering the hydraulic unit
assembly, insert a rubber plug “a” or a bolt (M10
×
1.00) into each flare nut hole.
NOTICE
ECA19810
When using a bolt, do not tighten the bolt un-
til the bolt head touches the hydraulic unit.
Otherwise, the brake pipe seating surface
could be deformed.
1
a
Summary of Contents for YZF-R1
Page 2: ......
Page 6: ......
Page 8: ......
Page 38: ...SPECIAL TOOLS 1 29 ...
Page 55: ...TIGHTENING TORQUES 2 16 ...
Page 60: ...CABLE ROUTING 2 21 Frame rear right side view B A C D 2 1 2 3 4 5 6 7 ...
Page 82: ...CABLE ROUTING 2 43 Front brake hose left side view A 1 1 1 1 2 2 2 3 3 3 4 4 4 3 4 ...
Page 86: ...CABLE ROUTING 2 47 Fuel tank top and left side view A B 1 2 3 4 5 2 5 ...
Page 92: ...CABLE ROUTING 2 53 Air cut off valve right side view A B C C D E 1 2 2 3 3 3 4 4 5 5 5 6 7 ...
Page 100: ...CABLE ROUTING 2 61 Muffler top and left side view 1 1 2 3 3 4 5 5 6 6 4 4 5 6 5 6 A ...
Page 104: ...CABLE ROUTING 2 65 ...
Page 107: ......
Page 144: ...PERIODIC MAINTENANCE 3 37 ...
Page 149: ......
Page 171: ...GENERAL CHASSIS 5 4 22 T R Front muffler protector bolt 7 N m 0 7 kgf m 5 2 lb ft b b a a 1 ...
Page 280: ...CHAIN DRIVE 4 131 ...
Page 336: ...ELECTRIC STARTER 5 53 1 2 3 a b ...
Page 406: ...WATER PUMP 6 17 ...
Page 432: ...AIR INDUCTION SYSTEM 7 25 ...
Page 435: ......
Page 441: ...IGNITION SYSTEM 8 6 ...
Page 449: ...CHARGING SYSTEM 8 14 ...
Page 453: ...LIGHTING SYSTEM 8 18 ...
Page 488: ...ELECTRICAL COMPONENTS 8 53 ...
Page 497: ......
Page 507: ...SYSTEM DIAGRAM 9 10 ...
Page 525: ...STEERING DAMPER SYSTEM 9 28 ...
Page 800: ...91_ABS 9 303 4 Defective hydraulic unit assembly Replace the hydraulic unit assembly ...
Page 801: ...91_ABS 9 304 ...
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