2020 YAMAHA YZF-R6 lock

Periodic maintenance an d a djustment
7-28
7

Use only the specifie d b rake flu-
i d ; otherwise, the ru bber seals
may deteriorate, causin g leak-
a g e.
 Refill with the same type of
brake flui d. A ddin g a brake flui d
other than DOT 4 may result in a
harmful chemical reaction.
 Be careful that water or dust
d oes not enter the brake flui d
reservoir when refillin g. Water
will si gnificantly lower the boil-
in g point of the flui d an d may re-
sult in vapor lock, an d d irt may
clo g the ABS hy draulic unit
valves.
NOTICE
ECA17641
Brake flui d may d amage painte d
surfaces or plastic parts. Always
clean up spille d flui d imme diately.As the brake pads wear, it is normal for
the brake fluid level to gradually go
down. A low brake fluid level may indi-
cate worn brake pads and/or brake
system leakage; therefore, be sure to
check the brake pads for wear and the
brake system for leakage. If the brake fluid level goes down suddenly, have a
Yamaha dealer check the cause before
further riding.
EAU22734
Chan
gin g the brake flui dHave a Yamaha dealer change the
brake fluid every 2 years. In addition,
have the seals of the master cylinders
and brake calipers, as well as the brake
hoses replaced at the intervals listed
below or sooner if they are damaged or
leaking.
 Brake seals: every 2 years
 Brake hoses: every 4 years
UBN6E2E0.book Page 28 Friday, December 7, 2018 2:56 PM

Periodic maintenance an d a djustment
7-29
7
EAU22762
Drive chain slackThe drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU74253
To check the drive chain slack
1. Place the motorcycle on the side- stand.TIPWhen checking and adjusting the drive
chain slack, there should be no weight
on the motorcycle.2. Shift the transmission into theneutral position.
3. Measure the drive chain slack as shown. 4. If the drive chain slack is incorrect,
adjust it as follows. NOTICE: Im-
proper drive chain slack will
overloa d the en gine as well as
other vital parts of the motorcy-
cle an d can lead to chain slip-
pa ge or breakag e. To prevent
this from occurrin g, keep the
d rive chain slack within the
specified limits.
[ECA10572]
EAU74260
To adjust the drive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack. 1. Loosen the axle nut and the lock- nut on each side of the swingarm. 2. To tighten the drive chain, turn the
drive chain slack adjusting bolt on
each side of the swingarm in di-
rection (a). To loosen the drive
chain, turn the adjusting bolt on
each side of the swingarm in di-
rection (b), and then push the rear
wheel forward.
1. Drive chain slack
1
Drive chain slack:30.0–45.0 mm (1.18–1.77 in)
1. Drive chain puller
2. Axle nut
3. Drive chain slack adjusting bolt
4. Locknut
5. Alignment marks
4
2
3
1
5
UBN6E2E0.book Page 29 Friday, December 7, 2018 2:56 PM

Periodic maintenance an d a djustment
7-30
7
TIPUsing the alignment marks on each
side of the swingarm, make sure that
both drive chain pullers are in the same
position for proper wheel alignment.3. Tighten the axle nut, then the lock-
nuts to their specified torques. 4. Make sure that the drive chain
pullers are in the same position,
the drive chain slack is correct,
and the drive chain moves
smoothly.
EAU23026
Cleanin g an d lu bricatin g the
d rive chainThe drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.NOTICE
ECA10584
The drive chain must b e lubricate d
after washin g the motorcycle, ri din g
in the rain or ri din g in wet areas.1. Clean the drive chain with kero-
sene and a small soft brush.
NOTICE: To prevent d amaging
the O-rin gs, do not clean the
d rive chain with steam cleaners,
hi gh-pressure washers or inap-
propriate solvents.
[ECA11122]
2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive chain with a special O-ring chain
lubricant. NOTICE: Do not use
en gine oil or any other lu bri-
cants for the drive chain, as they
1. Drive chain slack adjusting bolt
2. LocknutTi ghtenin g torques:
Axle nut: 110 N·m (11 kgf·m, 81 lb·ft)
Locknut:
16 N·m (1.6 kgf·m, 12 lb·ft)
1
2
(a)
(b)
UBN6E2E0.book Page 30 Friday, December 7, 2018 2:56 PM

Periodic maintenance an d a djustment
7-37
7
Fuse box 2 is located under panel A.
(See page 7-9.) If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off the electrical circuit in question.
2. Remove the blown fuse, and then install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a hi gher ampera ge
ratin g than recommen ded to
avoi d causin g extensive d am-
a g e to the electrical system an d
possi bly a fire.
[EWA15132]
3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.
1. Fuse box 1
2. Fuel injection system fuse
3. ABS ECU fuse
4. Terminal fuse 1 (for optional equipment)
5. Electronic throttle valve fuse
6. Backup fuse (for clock and immobilizer sys-tem)
7. ABS solenoid fuse
8. Spare fuse
2
1
345
8
67
1. Fuse box 2
2. Hazard fuse
3. Headlight fuse
4. Ignition fuse
5. Signaling system fuse
6. Right radiator fan motor fuse
7. Left radiator fan motor fuse
8. Spare fuse
2
1
345
8
67
Specifie d fuses:
Main fuse:
50.0 A
Te r m i n a l f u s e 1 :
2.0 A
Fuel injection system fuse: 15.0 A
ABS motor fuse: 30.0 A
ABS ECU fuse:
7.5 A
ABS solenoid fuse: 10.0 A
Hazard fuse: 7.5 A
Electronic throttle valve fuse:
7.5 A
Backup fuse: 7.5 A
Radiator fan motor fuse: 15.0 A × 2
Ignition fuse:
15.0 A
Signaling system fuse: 10.0 A
Headlight fuse: 7.5 A
UBN6E2E0.book Page 37 Friday, December 7, 2018 2:56 PM

Periodic maintenance an d a djustment
7-42
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.
UBN6E2E0.book Page 42 Friday, December 7, 2018 2:56 PM

11-1
11
Index
AABS....................................................... 4-18
ABS warning light ................................... 4-7
Air filter element.................................... 7-20
Auxiliary DC connector ......................... 4-29BBattery .................................................. 7-35
Brake and clutch levers, checking and
lubricating........................................... 7-32
Brake and shift pedals, checking and lubricating........................................... 7-32
Brake fluid, changing............................ 7-28
Brake fluid level, checking.................... 7-27
Brake lever............................................ 4-17
Brake lever free play, checking ............ 7-25
Brake light switches ............................. 7-26
Brake pedal .......................................... 4-17CCables, checking and lubricating ......... 7-31
Canister ................................................ 7-14
Care ........................................................ 8-1
Catalytic converter ............................... 4-22
Clutch lever........................................... 4-16
Clutch lever free play, adjusting ........... 7-24
Coolant ................................................. 7-19
Coolant temperature warning light ......... 4-6
Cowlings and panels, removing and installing ............................................... 7-9DData recording, vehicle......................... 10-2
Diagnostic connector ........................... 10-2
Dimmer switch........................................ 4-4
D-mode (drive mode).............................. 3-1
Drive chain, cleaning and lubricating ... 7-30 Drive chain slack .................................. 7-29
Drive mode switch ................................. 4-5
EEngine break-in ...................................... 6-4
Engine idling speed, checking ............. 7-20
Engine oil and oil filter cartridge........... 7-15
Engine overheating .............................. 7-42
Engine serial number ........................... 10-1
Engine trouble warning light .................. 4-6
EXUP system ....................................... 4-28FFront and rear brake pads, checking ... 7-26
Front fork, adjusting ............................. 4-24
Front fork, checking ............................. 7-34
Fuel ...................................................... 4-19
Fuel consumption, tips for reducing ...... 6-3
Fuel level warning light........................... 4-6
Fuel tank cap........................................ 4-19
Fuel tank overflow hose ....................... 4-21
Fuses, replacing ................................... 7-36HHandlebar switches ............................... 4-3
Hazard switch ........................................ 4-4
High beam indicator light ....................... 4-5
Horn switch ............................................ 4-4IIdentification numbers ......................... 10-1
Ignition circuit cut-off system .............. 4-30
Immobilizer system ................................ 4-1
Immobilizer system indicator light ......... 4-7
Indicator lights and warning lights ......... 4-5LLicense plate light bulb, replacing ....... 7-38
MMain switch/steering lock ....................... 4-2
Maintenance and lubrication, periodic ... 7-5
Maintenance, emission control
system .................................................. 7-3
Matte color, caution................................ 8-1
Model label ........................................... 10-1
Multi-function meter unit ........................ 4-8NNeutral indicator light ............................. 4-5OOil level warning light .............................. 4-5PParking.................................................... 6-4
Part locations.......................................... 2-1
Pass switch............................................. 4-4QQuick shift system .................................. 3-4RRear view mirrors .................................. 4-23SSafety information................................... 1-1
Seats ..................................................... 4-22
Shifting.................................................... 6-2
Shift light ................................................. 4-7
Shift pedal............................................. 4-17
Shock absorber assembly, adjusting ... 4-26
Sidestand.............................................. 4-29
Sidestand, checking and lubricating .... 7-33
Spark plugs, checking .......................... 7-13
Special features ...................................... 3-1
Specifications ......................................... 9-1
Starting the engine ................................. 6-1
Steering, checking ................................ 7-34
UBN6E2E0.book Page 1 Friday, December 7, 2018 2:56 PM