stop start YAMAHA YZF-R1 2020 User Guide

Instrument and control functions
4-50
4
EAU57952
Ig nition circuit cut-off systemThis system prevents in-gear engine
starts unless the clutch lever is pulled
and the sidestand is up. Also, it will
stop the running engine should the
sidestand be lowered while the trans-
mission is in gear.
Periodically check this system via the
following procedure.TIP This check is most reliable if per-
formed with a warmed-up engine.
 See pages 4-2 and 4-3 for switch
operation information.
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Instrument and control functions
4-51
4
With the engine turned off:
1. Move the sidestand down.
2. Set engine stop switch to run position.
3. Turn main switch to on position.
4. Shift transmission into neutral.
5. Push the start switch.
Does the engine start?
With the engine still running:
6. Move the sidestand up.
7. Pull the clutch lever.
8. Shift transmission into gear.
9. Move the sidestand down.
Does the engine stall?
After the engine has stalled:
10. Move the sidestand up.
11. Pull the clutch lever.
12. Push the start switch.
Does the engine start?
The system is OK. The motorcycle can be ridden.
YES NO YES NO YES NO
The neutral switch may not be working.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
The clutch switch may not be working.
The motorcycle should not be ridden until
checked by a Yamaha dealer.The sidestand switch may not be working.
The motorcycle should not be ridden until
checked by a Yamaha dealer.If a malfunction is found, have the vehicle
inspected before riding.
WARNING
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Operation and important ri din g points
6-2
6
EAU88420
Startin g the en gineThe ignition circuit cut-off system will
enable starting when:
 the transmission is in the neutral
position or
 the transmission is in gear, the
sidestand is up, and the clutch le-
ver is pulled.
To start the engine1. Turn the main switch on and set the engine stop switch to the run
position.
2. Confirm the indicator and warning light(s) come on for a few sec-
onds, and then go off. (See page
4-5.)TIPDo not start the engine if the mal-
function indicator light remains on.
 The oil pressure and coolant tem-
perature warning light should
come on and stay on until the en-
gine is started. 
The ABS warning light should
come on and stay on until the ve-
hicle reaches a speed of 10 km/h
(6 mi/h).
NOTICE
ECA24110
If a warnin g or in dicator li ght does
not work as d escribed a bove, have a
Yamaha dealer check the vehicle.3. Shift the transmission into the
neutral position.
4. Start the engine by pushing the start switch.
5. Release the start switch when the engine starts, or after 5 seconds.
Wait 10 seconds before pressing
the switch again to allow battery
voltage to restore.NOTICE
ECA11043
For maximum en gine life, never ac-
celerate har d when the en gine is
col d!
EAU68221
TIPThis model is equipped with:
 an inertial measurement unit
(IMU). This unit stops the engine in
case of a turnover. Turn the main
switch off and then on before at-
tempting to restart the engine.
Failing to do so will prevent the en-
gine from starting even though the
engine will crank when pushing
the start switch.
 an engine auto-stop system. The
engine stops automatically if left
idling for 20 minutes. If the engine
stops, simply push the start
switch to restart the engine.
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Operation and important rid ing points
6-3
6
EAU67082
Shiftin gShifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing hills,
etc.
This model is equipped with QSS. See
pages 3-3 and 4-17.TIPTo shift into neutral ( ), gently de-
press the shift pedal from 2nd gear, or
slightly raise it while in 1st gear.
NOTICE
ECA22521
Even with the transmission in
the neutral position, do not
coast for lon g period s of time
with the en gine off, nor tow the
motorcycle for lon g d istances.
The transmission is properly lu-
b ricate d only when the en gine is
runnin g. Ina dequate lu brication
may damag e the transmission.
 Except when usin g the quick
shift system, always pull the
clutch lever when chan gin g
g ears to avoi d d amag ing the en-
g ine, transmission, an d drive-
train.
EAU85370
To start out an d accelerate
1. Pull the clutch lever to disengage the clutch.
2. Shift the transmission into first gear. The neutral indicator light
should go out.
3. Open the throttle gradually, and at the same time, release the clutch
lever slowly. 4. After starting out, close the throt-
tle, and at the same time, quickly
pull the clutch lever in.
5. Shift the transmission into second gear. (Make sure not to shift the
transmission into the neutral posi-
tion.)
6. Open the throttle part way and gradually release the clutch lever.
7. Follow the same procedure when shifting to the next higher gear.
EAU85380
To decelerate
1. Release the throttle and apply both the front and the rear brakes
smoothly to slow the motorcycle.
2. As the vehicle decelerates, shift to a lower gear.
3. When the engine is about to stall or runs roughly, pull the clutch le-
ver in, use the brakes to slow the
motorcycle, and continue to
downshift as necessary.
4. Once the motorcycle has stopped, the transmission can be
shifted into the neutral position.
1. Gear positions
2. Shift pedal
2
1 1
1
N 2 3
4
5
6
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Periodic maintenance an d a djustment
7-40
7
EAU86420
En gine overheatin g
WARNING
EWAT1041
Do not remove the ra diator cap when the en gine an d ra diator are hot. Scal din g hot flui d an d steam may be
b lown out un der pressure, which coul d cause serious injury. Be sure to wait until the en gine has coole d.
 Place a thick ra g, like a towel, over the ra diator cap, an d then slowly rotate the cap counterclockwise to the
d etent to allow any resi dual pressure to escape. When the hissin g soun d has stoppe d, press down on the cap
while turnin g it counterclockwise, an d then remove the cap.TIPIf coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool-
ant as soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
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Index
11-2
11
Steering, checking ................................ 7-32
Stop/Run/Start switch ............................ 4-4
Storage ................................................... 8-4
Supporting the motorcycle ................... 7-38
Swingarm pivots, lubricating ................ 7-31TThrottle grip, checking and
lubricating........................................... 7-29
Tires ...................................................... 7-19
Titanium muffler, cleaning ...................... 8-3
Tool kit .................................................... 7-2
Troubleshooting.................................... 7-38
Troubleshooting chart .......................... 7-39
Turn signal indicator lights ..................... 4-6
Turn signal switch................................... 4-4VValve clearance .................................... 7-19
Vehicle identification number ............... 10-1
Vehicle lights ........................................ 7-37WWheel bearings, checking .................... 7-33
Wheels .................................................. 7-22YYamalube.............................................. 7-17
YRC functions visual guide .................... 3-6
YRC settings......................................... 4-16
YRC (Yamaha Ride Control) ................... 3-1
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