FEATURES
1-8
When the brake lever is squeezed, the front brake master cylinder pressure sensor in the hydraulic unit
detects the hydraulic pressure. The ABS ECU calculates the appropriate rear brake force according to
the detected hydraulic pressure and sends a signal to the rear brake hydraulic pump. The hydraulic
pump pressurizes the rear brake caliper using electronic control to operate the rear brake.
TIP
• If the brake pedal is depressed while the brake lever is being squeezed, the brake pedal may feel hard
due to the operation of the UBS, but this does not indicate a malfunction.
• If the rider squeezes the brake lever while resting their foot on the brake pedal, a vibration can be felt
at the brake pedal due to the operation of the UBS, but this does not indicate a malfunction.
NOTICE
ECA23P1054
• The UBS does not operate before the vehicle starts off.
• If the vehicle is stopped by operating the brake lever only, the brake force due to the operation
of the UBS will be maintained while the brake lever is squeezed. However, if the brake lever is
released, then squeezed again, the UBS will not operate.
NOTICE
ECA23P1055
• The unified brake system is a system to assist the brake operation. However, both the brake
lever and the brake pedal must be operated for maximum braking effect.
• Because the balance between the front brake calipers and the rear brake caliper in the unified
brake system is determined electronically, be sure to use the specified brake pads.
• Each set of brake pads should be checked individually and replaced if necessary.
When vehicle is stopped using brake lever only
UBS hydraulic pressure map
The appropriate hydraulic pressure is distributed according to the load being carried by the vehicle. See
figure “A”.
The coefficient is set according to the vehicle speed when the brake input starts and remains constant
until the brake input stops. When the brakes are operated continuously to slow the vehicle, the coeffi-
cient (UBS brake force) does not decrease together with the vehicle speed. See figure “B”.
A. Deceleration
a. Input
b. Automatic pressurization
B. Vehicle stopped
c. Input maintained
d. Pressurization maintained
C. Brake lever released, then
squeezed again, after vehicle
stops
e. Brake lever released, then
squeezed again
f. No automatic pressurization
e
a
c
b
d
f
A
B
C
Summary of Contents for XT1200Z(Z) 2010
Page 1: ...2010 SERVICE MANUAL XT1200Z Z 23P 28197 E0 ...
Page 6: ......
Page 8: ......
Page 70: ...ENGINE SPECIFICATIONS 2 9 Final gear backlash 0 20 0 40 mm 0 008 0 016 in ...
Page 88: ...TIGHTENING TORQUES 2 27 2 1 ...
Page 100: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 39 Oil pump left side view 8 2 1 3 4 5 6 7 ...
Page 102: ...COOLING SYSTEM DIAGRAMS 2 41 EAS20420 COOLING SYSTEM DIAGRAMS 4 2 5 1 4 2 3 8 7 6 3 4 ...
Page 112: ...CABLE ROUTING 2 51 Fuel tank and throttle bodies left side view A B C D E F G 1 2 3 3 5 3 4 6 ...
Page 124: ...CABLE ROUTING 2 63 Engine right side view A 1 2 3 4 5 6 3 3 4 5 5 C E F B 6 7 G D ...
Page 132: ...CABLE ROUTING 2 71 Rear fender top view A B C D E E F G 1 1 2 2 3 4 5 6 H I J 1 2 3 4 6 7 4 3 ...
Page 134: ...CABLE ROUTING 2 73 ...
Page 137: ......
Page 292: ...SHAFT DRIVE 4 119 ...
Page 337: ...CYLINDER AND PISTONS 5 42 1 ...
Page 432: ...WATER PUMP 6 11 ...
Page 449: ......
Page 455: ...IGNITION SYSTEM 8 6 ...
Page 461: ...ELECTRIC STARTING SYSTEM 8 12 ...
Page 463: ...CHARGING SYSTEM 8 14 1 AC magneto 2 Rectifier regulator 3 Main fuse 4 Battery ...
Page 465: ...CHARGING SYSTEM 8 16 ...
Page 527: ...FUEL PUMP SYSTEM 8 78 ...
Page 536: ...IMMOBILIZER SYSTEM 8 87 a Light on b Light off ...
Page 537: ...IMMOBILIZER SYSTEM 8 88 ...
Page 541: ...ABS ANTI LOCK BRAKE SYSTEM 8 92 ...
Page 581: ...ABS ANTI LOCK BRAKE SYSTEM 8 132 ...
Page 584: ...ELECTRICAL COMPONENTS 8 135 1 2 3 4 5 6 7 8 10 9 11 13 15 14 16 12 17 18 19 ...
Page 606: ...ELECTRICAL COMPONENTS 8 157 ...
Page 613: ......
Page 614: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...