2020 YAMAHA YZF-R1 traction control

Instrument and control functions
4-17
4 of overall system intervention, while
setting level 9 applies the greatest
amount of overall traction control.
TIP
TCS can only be turned on or off
via the main screen using the
mode switch.
 When TCS has been turned off,
TCS, SCS, LCS, and LIF will be set
to OFF and cannot be adjusted.
When TCS is turned on again,
these related-traction control
functions will return to their previ-
ous setting levels.
SCS
SCS can be set to OFF, 1, 2, and 3.
OFF turns the slide control system off,
setting level 1 provides the least
amount of system intervention, and
setting level 3 provides the greatest
amount of system intervention.
LCS
LCS can be set to 1, 2, or OFF. Setting
level 1 keeps engine speed from rising
above 9000 r/min even when the throt-
tle grip is fully turned. Setting level 2
keeps engine speed from rising above
8000 r/min. OFF disables the LCS
function from the selected YRC mode (the LCS icon will not appear and the
launch control function cannot be acti-
vated).
When LCS has been set to level 1 or 2
for the selected YRC mode, the LCS
indicator on the main screen will ap-
pear in a grey color to indicate that
LCS is available. When the launch con-
trol system has been activated (made
ready for use via the mode switch), the
LCS indicator will turn white.
TIPLCS works in conjunction with the LIF
system. LCS cannot be used if LIF is
turned off.QSS
The quick shift system is divided into
QS (upshift) and QS (downshift)
sections. QS and QS are not
linked and can be independently
turned on or off.
QS can be set to 1, 2, or OFF. Set-
ting level 1 is designed for maximum
acceleration, while setting level 2 is de-
signed to give smooth shifts at halfway
or less throttle openings. OFF turns the
1. System intervention
2. Lean angle
1
TCS
2
1 5
4 3
2 6 9
8 7
1. System intervention
2. Sideward slide
1 3
2
1
SCS
2
UB3LE0E0.book Page 17 Tuesday, July 23, 2019 12:05 PM

Instrument and control functions
4-34
4

The ABS performs best with
lon g b rakin g d istances.
 On certain surfaces, such as
rou gh or g ravel roa ds, the b rak-
in g d istance may be lon ger with
the ABS than without.
BC2 incorporates standard ABS and in
addition regulates braking power when
cornering to suppress lateral wheel
slip.
WARNING
EWA20891
The brake control system is not a
su bstitute for the use of proper ri d-
in g an d brakin g techniques. The
b rake control system cannot pre-
vent all loss of traction due to over-
b rakin g from excessive spee d, or
lateral wheel slip when brakin g on
slippery surfaces.The ABS hydraulic unit is monitored by
the ABS ECU, which will revert the sys-
tem to conventional braking if a mal-
function occurs.
TIPThe ABS performs a self-diagnosis test
when the vehicle is started and reach-
es a speed of 10 km/h (6 mi/h). During
this test, a clicking noise may be audi-
ble from the hydraulic control unit, and
a vibration may be felt at the brake le-
ver or pedal, but this is normal.NOTICE
ECA20100
Be careful not to d amage the wheel
sensor or wheel sensor rotor; other-
wise, improper performance of the
ABS will result.1. Front wheel sensor rotor
2. Front wheel sensor
1
2
1. Rear wheel sensor rotor
2. Rear wheel sensor
1
2
UB3LE0E0.book Page 34 Tuesday, July 23, 2019 12:05 PM

Operation and important ri din g points
6-4
6
The neutral indicator light should
come on and then the clutch lever
can be released.
WARNING
EWA17380

Improper brakin g can cause
loss of control or traction. Al-
ways use both brakes an d apply
them smoothly.
 Make sure that the motorcycle
and the en gine have sufficiently
slowe d b efore shiftin g to a low-
er gear. En gag in g a lower gear
when the vehicle or en gine
spee d is too hi gh coul d make
the rear wheel lose traction or
the en gine to over-rev. This
coul d cause loss of control, an
acci dent an d injury. It coul d also
cause en gine or d rive train dam-
a g e.
EAU16811
Tips for re ducin g fuel con-
sumptionFuel consumption depends largely on
your riding style. Consider the follow-
ing tips to reduce fuel consumption:
 Shift up swiftly, and avoid high en-
gine speeds during acceleration.
 Do not rev the engine while shift-
ing down, and avoid high engine
speeds with no load on the en-
gine.
 Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffic jams, at traf-
fic lights or at railroad crossings).
EAU17214
Parkin gWhen parking, stop the engine, and
then remove the key from the main
switch.
WARNING
EWA10312
Since the en gine an d exhaust
system can become very hot,
park in a place where pe destri-
ans or chil dren are not likely to
touch them and b e burne d.
 Do not park on a slope or on soft
groun d, otherwise the vehicle
may overturn, increasin g the
risk of a fuel leak an d fire.
 Do not park near grass or other
flammab le materials which
mi ght catch fire.
UB3LE0E0.book Page 4 Tuesday, July 23, 2019 12:05 PM