2018 YAMAHA YZF-R1 lock

Periodic maintenance and adjustment
7-21
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2
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4
5
67
8
9
10
11
12 corrosion.

Follow the instructions for cleaning
provided on page 8-1.
EAU67342
Adjusting the clutch lever free
playMeasure the clutch lever free play as
shown.
Periodically check the clutch lever free
play and, if necessary, adjust it as fol-
lows.
To increase the clutch lever free play,
turn the clutch lever free play adjusting
bolt at the clutch lever in direction (a).
To decrease the clutch lever free play,
turn the adjusting bolt in direction (b).
TIPIf the specified clutch lever free play
cannot be obtained as describedabove, proceed as follows.
1. Fully turn the adjusting bolt at the clutch lever in direction (a) to loos-
en the clutch cable.
2. Remove cowling B. (See page 7-8.)
3. Loosen the locknut further down the clutch cable.
4. To increase the clutch lever free play, turn the clutch lever free play
adjusting nut in direction (a). To
decrease the clutch lever free play,
turn the adjusting nut in direction
(b).
1. Clutch lever free play adjusting bolt
2. Clutch lever free playClutch lever free play:10.0–15.0 mm (0.39–0.59 in)
1
2 (a)
(b)
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Periodic maintenance and adjustment7-22
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678
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12
5. Tighten the locknut.
6. Install the cowling.
EAU37914
Checking the brak
e lever free
playThere should be no free play at the
brake lever end. If there is free play,
have a Yamaha dealer inspect the
brake system.
WARNING
EWA14212
A soft or spongy feeling in the brake
lever can indicate the presence of air
in the hydraulic system. If there is air
in the hydraulic system, have a
Yamaha dealer bleed the system be-
fore operating the vehicle. Air in the
hydraulic system will diminish the
braking performance, which may re- sult in loss of control and an acci-
dent.
1. Locknut
2. Clutch lever free play adjusting nut
1
2
(a)(b)
1. No brake lever free play
1
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Periodic maintenance and adjustment
7-23
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67
8
9
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12
EAU36505
Brake light switchesThe brake light should come on just be-
fore braking takes effect. The brake
light is activated by switches connected
to the brake lever and brake pedal.
Since the brake light switches are com-
ponents of the anti-lock brake system,
they should only be serviced by a
Yamaha dealer.
EAU22393
Checking the front and rear
brake padsThe front and rear brake pads must be
checked for wear at the intervals spec-
ified in the periodic maintenance and
lubrication chart.
EAU36891
Front brake pads
Each front brake pad is provided with
wear indicators, which allows you to
check the brake pad wear without hav-
ing to disassemble the brake. To check
the brake pad wear, check the position
of the wear indicators while applying
the brake. If a brake pad has worn to
the point that a wear indicator almost touches the brake disc, have a Yamaha
dealer replace the brake pads as a set.
EAU48071
Rear brake pads
Each rear brake pad is provided with a
wear indicator groove, which allows
you to check the brake pad wear with-
out having to disassemble the brake.
To check the brake pad wear, check
the wear indicator groove. If a brake
pad has worn to the point that the wear
indicator groove almost appears, have
a Yamaha dealer replace the brake
pads as a set.
1. Brake pad wear indicator
1
1. Brake pad wear indicator groove
1
1
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Periodic maintenance and adjustment7-24
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678
9
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EAU22583
Checking the br ake fluid levelBefore riding, check that the brake fluid
is above the minimum level mark.
Check the brake fluid level with the res-
ervoir in an upright position. Replenish
the brake fluid if necessary.NOTICE
ECA17641
Brake fluid may damage painted sur-
faces or plastic parts. Always cleanup spilled fluid immediately.
Front brake Rear brake
As the brake pads wear, it is normal for
the brake fluid level to gradually go
down.

A low brake fluid level may indicate
worn brake pads 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 rid-
ing.WARNING
EWA15991
Improper maintenance can result in
loss of braking ability. Observe
these precautions:

Insufficient brake fluid may al-
low air to enter the brake sys-
tem, reducing braking
performance.

Clean the filler cap before re-
moving. Use only DOT 4 brake
fluid from a sealed container.

Use only the specified brake flu-
id; otherwise, the rubber seals
may deteriorate, causing leak-
age.

Refill with the same type of
brake fluid. Adding a brake fluid
other than DOT 4 may result in a
harmful chemical reaction.

Be careful that water does not
enter the brake fluid reservoir
when refilling. Water will signifi-
cantly lower the boiling point of
the fluid and may result in vaporlock.
Specified brake fluid:
DOT 41. Minimum level mark
1
1. Minimum level mark
1
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Periodic maintenance and adjustment7-26
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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 direc-
tion (a). To loosen the drive chain,
turn the adjusting bolt on each side
of the swingarm in direction (b),
and then push the rear wheel for-
ward.
TIPUsing the alignment marks on each
side of the swingarm, make sure that
both drive chain pullers are in the sameposition for proper wheel alignment. 3. Tighten the axle nut, then the lock-
nuts to their specified torques.
4. Make sure that the drive chain pull- ers are in the same position, the
drive chain slack is correct, and
the drive chain moves smoothly.
EAU23026
Cleaning and l ubricating the
drive 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 be lubricated
after washing the motorcycle, ridingin the rain or riding in wet areas.
1. Clean the drive chain with kero- sene and a small soft brush.
NOTICE: To prevent damaging
the O-rings, do not clean the
drive chain with steam cleaners,
high-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
engine oil or any other lubri-
cants for the drive chain, as they
1. Axle nut
2. Drive chain puller
3. Drive chain slack adjusting bolt
4. Locknut
5. Alignment marksTightening torques: Axle nut:190 N·m (19 kgf·m, 140 lb·ft)
Locknut: 16 N·m (1.6 kgf·m, 12 lb·ft)
1
2 3
45
(a)
(b)
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Periodic maintenance and adjustment7-38
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Engine overheating
WARNING
EWAT1041

Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.

Place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the de-
tent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the capwhile turning it counterclockwise, and then remove the cap.
TIPIf coolant is not available, tap water can be temporarily
used instead, provided that it is changed to the recommended coolantas 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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11-1
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9
101112
Index
AABS warning light ................................... 4-6
Air filter element.................................... 7-17
Auxiliary DC connector ......................... 4-48
Auxiliary system warning light ................ 4-8BBattery .................................................. 7-31
Brake and clutch levers, checking and lubricating ........................................... 7-28
Brake and shift pedals, checking and
lubricating ........................................... 7-28
Brake fluid, changing ............................ 7-25
Brake fluid level, checking .................... 7-24
Brake lever ........................................... 4-32
Brake lever free play, checking ............ 7-22
Brake light switches .............................. 7-23
Brake pedal .......................................... 4-32
Brake system ........................................ 4-33CCables, checking and lubricating .......... 7-27
Canister ................................................ 7-12
Care ........................................................ 8-1
Catalytic converter ................................ 4-37
CCU ...................................................... 4-39
Clutch lever........................................... 4-31
Clutch lever free play, adjusting ........... 7-21
Coolant ................................................. 7-15
Cowlings and panels, removing and installing ............................................... 7-8DData recording, vehicle ......................... 10-2
Diagnostic connecto r ............................ 10-2
Dimmer switch ........................................ 4-4
Display, main screen .............................. 4-8 Display, menu screen ............................ 4-14
Document storage ................................. 4-40
Drive chain, cleaning
and lubricating .... 7-26
Drive chain slack ................................... 7-25
EEngine break-in ....................................... 6-3
Engine idling speed, checking............... 7-17
Engine oil and oil filter cartridge ............ 7-12
Engine serial number ............................ 10-1
Engine trouble warning light .................... 4-6
EXUP system ........................................ 4-47FFront and rear brake pads, checking .... 7-23
Front fork, adjusting .............................. 4-41
Front fork, checking............................... 7-30
Fuel ....................................................... 4-35
Fuel consumption, tips for reducing ........6-3
Fuel level warning light ............................4-6
Fuel tank cap......................................... 4-34
Fuel tank overflow hose ........................ 4-37
Fuses, replacing .................................... 7-33GGlossary ..................................................3-4HHandlebar switches ................................. 4-3
Hazard switch.......................................... 4-4
High beam indicator light .........................4-6
Horn switch .............................................4-4IIdentification numbers ........................... 10-1
Ignition circuit cut-off system ................. 4-49
Immobilizer system ................................. 4-1
Immobilizer system indicator light ........... 4-7
Indicator lights and warning lights ........... 4-6
MMain switch/steering lock ........................ 4-2
Maintenance and lubrication, periodic .... 7-4
Maintenance, emission control system ... 7-3
Matte color, caution ................................ 8-1
Model label ........................................... 10-2NNeutral indicator light .............................. 4-6OOil pressure and coolant temperature
warning light ......................................... 4-8PParking.................................................... 6-4
Part locations .......................................... 2-1
Pass/LAP switch ..................................... 4-4RRear view mirrors.................................. 4-41SSafety information ................................... 1-1
Seats..................................................... 4-38
Shift indicator light .................................. 4-7
Shifting .................................................... 6-2
Shift pedal ............................................. 4-31
Shock absorber assembly, adjusting .... 4-44
Sidestand .............................................. 4-48
Sidestand, checking and lubricating ..... 7-29
Spark plugs, checking ........................... 7-11
Special features ...................................... 3-1
Specifications.......................................... 9-1
Stability control indicator light ................. 4-7
Starting the engine.................................. 6-1
Steering, checking ................................ 7-30
Stop/Run/Start switch ............................. 4-4
Storage ................................................... 8-4
BX4-9-E1_1.book 1 ページ ２０１８年４月２７日　金曜日　午後４時３分