Yamaha 2008 Fazer FZ1-N Service Manual page 19

ABS operation and vehicle control
If the ABS starts operating, there is a tendency of the wheel to lock, and the vehicle is approaching
the limit of control. To make the rider aware of this condition, the ABS has been designed to gener-
ate a reaction-force pulsating action in the brake lever and brake pedal independently.
NOTE:
When the ABS is activated, a pulsating action may be felt at the brake lever or brake pedal, but this
does not indicate a malfunction.
The higher the side force on a tire, the less traction there is available for braking. This is true
whether the vehicle is equipped with ABS or not. Therefore, sudden braking while cornering is not
recommended. Excessive side force, which ABS cannot prevent, could cause the tire to slip side-
ways.
EWA5D01001
WARNING
The braking of the vehicle, even in the worst case, is principally executed when the vehicle is
advancing straight ahead. During a turn, sudden braking is liable to cause a loss of traction
of the tires. Even in vehicles equipped with ABS, overturning of the vehicle cannot be pre-
vented if it is braked suddenly.
The ABS functions to prevent the tendency of the wheel to lock by controlling the brake fluid pres-
sure. However, if there is a tendency of the wheel to lock on a slippery road surface, due to engine
braking, the ABS may not be able to prevent the wheel from locking.
EWA13870
WARNING
The ABS controls only the tendency of the wheel to lock caused by applying the brakes. The
ABS cannot prevent wheel lock on slippery surfaces, such as ice, when it is caused by
engine braking, even if the ABS is operating.
a. Friction force between the tire and road
surface
b. Brake force
Electronic ABS features
The Yamaha ABS (anti-lock brake system) has been developed with the most advanced electronic
technology.
The ABS control is processed with good response under various vehicle travel conditions.
The ABS also includes a highly developed self-diagnosis function. The ABS detects any problem
condition and allows normal braking even if the ABS is not operating properly.
When this occurs, the ABS warning light on the meter assembly comes on.
The ABS stores the malfunction codes in the memory of the ABS ECU for easy problem identifica-
tion and troubleshooting.
c. Side force
d. Slip ratio (%)
1-10
FEATURES