2020 YAMAHA YZF-R1 spark plugs

Table of contentsSafety information ............................ 1-1
Description ....................................... 2-1
Left view ......................................... 2-1
Right view ....................................... 2-2
Controls and instruments ............... 2-3
Special features ............................... 3-1
YRC (Yamaha Ride Control) ........... 3-1
Glossary ......................................... 3-5
YRC functions visual guide ............ 3-6
Instrument an d control functions ... 4-1
Immobilizer system......................... 4-1
Main switch/steering lock............... 4-2
Handlebar switches ........................ 4-3
Indicator lights and warning
lights............................................ 4-5
Display ............................................ 4-9
MENU screen ............................... 4-15
Clutch lever .................................. 4-32
Shift pedal .................................... 4-32
Brake lever.................................... 4-33
Brake pedal .................................. 4-33
Brake control system (BC)............ 4-33
Fuel tank cap ................................ 4-35
Fuel ............................................... 4-35
Fuel tank overflow hose ............... 4-37
Catalytic converter ....................... 4-38
Seats ............................................ 4-38
CCU (for equipped models).......... 4-39 Seat cover (for equipped
models) ...................................... 4-40
Document storage ........................ 4-41
Rear view mirrors .......................... 4-41
Adjusting the front fork ................. 4-42
Adjusting the shock absorber assembly.................................... 4-45
EXUP system ................................ 4-48
Auxiliary DC connector ................. 4-49
Sidestand ...................................... 4-49
Ignition circuit cut-off system ....... 4-50
For your safety – pre-operation
checks ............................................... 5-1
Operation an d important ri din g
points ................................................. 6-1
Engine break-in ............................... 6-1
Starting the engine .......................... 6-2
Shifting ............................................ 6-3
Tips for reducing fuel consumption ................................ 6-4
Parking ............................................ 6-4
Perio dic maintenance an d
a d justment ........................................ 7-1
Tool kit ............................................ 7-2
Periodic maintenance charts .......... 7-3
Periodic maintenance chart for the emission control system .............. 7-3 General maintenance and
lubrication chart .......................... 7-5
Removing and installing cowlings and panels ................................... 7-9
Checking the spark plugs ............. 7-12
Canister ........................................ 7-13
Engine oil and oil filter cartridge ... 7-14
Why Yamalube.............................. 7-17
Coolant ......................................... 7-17
Air filter element ............................ 7-18
Checking the engine idling
speed ........................................ 7-19
Valve clearance............................. 7-19
Tires .............................................. 7-19
Cast magnesium wheels .............. 7-22
Adjusting the clutch lever free play ............................................ 7-23
Checking the brake lever free play ............................................ 7-24
Brake light switches ..................... 7-24
Checking the front and rear
brake pads ................................ 7-25
Checking the brake fluid level ...... 7-25
Changing the brake fluid .............. 7-26
Drive chain slack........................... 7-27
Cleaning and lubricating the
drive chain ................................. 7-28
Checking and lubricating the cables ........................................ 7-29
Checking and lubricating the throttle grip ................................ 7-29UB3LE0E0.book Page 1 Tuesday, July 23, 2019 12:05 PM

Instrument and control functions
4-6
4
EAU88280
Turn si gnal in dicator li ghts “ ”
an d“”
Each indicator light will flash when its
corresponding turn signal lights are
flashing.
EAU88300
Neutral in dicator li ght “ ”
This indicator light comes on when the
transmission is in the neutral position.
EAU88310
Hi gh beam in dicator li ght “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU88320
Fuel level warnin g li ght “ ”
This warning light comes on when the
fuel level drops below approximately
3.0 L (0.79 US gal, 0.66 Imp.gal). When
this occurs, refuel as soon as possible.
The electrical circuit of the warning
light can be checked by turning the ve-
hicle on. The warning light should
come on for a few seconds, and then
go off.
TIPIf the warning light does not come on at
all, remains on after refueling, or if the
warning light flashes repeatedly, have
a Yamaha dealer check the vehicle.
EAU88330
Malfunction in dicator li ght
(MIL) “ ”
This light comes on or flashes if a prob-
lem is detected in the engine or other
vehicle control system. If this occurs,
have a Yamaha dealer check the on-
board diagnostic system. The electri-
cal circuit of the warning light can be
checked by vehicle power on. The light
should come on for a few seconds,
and then go off. If the light does not
come on initially when the vehicle pow-
er on, or if the light remains on, have a
Yamaha dealer check the vehicle.NOTICE
ECA26820
If the MIL starts flashin g, re duce en-
g ine spee d to prevent exhaust sys-
tem damag e.
TIPThe engine is sensitively controlled for
the on-board diagnostic system to de-
tect deterioration and malfunction of
the emission control system. Due to
this specification, the MIL may come
on or flash for vehicle modifications,
lack of maintenance, or excessive or
improper use of the motorcycle. To
prevent this, observe these precau-
tions.
 Do not attempt to modify the soft-
ware of the engine control unit.
 Do not add any electrical acces-
sories that interfere with engine
control.
 Do not use aftermarket accesso-
ries or parts such as suspension,
spark plugs, injectors, exhaust
system, etc.
 Do not change drivetrain specifi-
cations (chain, sprockets, wheels,
tires, etc.).
 Do not remove or alter the O2 sen-
sor, air induction system, or ex-
haust parts (catalysts or EXUP,
etc.).
 Maintain proper drive chain.
UB3LE0E0.book Page 6 Tuesday, July 23, 2019 12:05 PM

Periodic maintenance an d a djustment
7-12
7
To install the panel
1. Insert the projections into the holders as shown, and then place
the panel in the original position. 2. Install the washers and bolts.
EAU67110
Checkin
g the spark plu gsThe spark plugs are important engine
components, which should be
checked periodically, preferably by a
Yamaha dealer. Since heat and depos-
its will cause any spark plug to slowly
erode, they should be removed and
checked in accordance with the peri-
odic maintenance and lubrication
chart. In addition, the condition of the
spark plugs can reveal the condition of
the engine.
The porcelain insulator around the
center electrode of each spark plug
should be a medium-to-light tan (the
ideal color when the vehicle is ridden
normally), and all spark plugs installed
in the engine should have the same
color. If any spark plug shows a dis-
tinctly different color, the engine could
be operating improperly. Do not at-
tempt to diagnose such problems
yourself. Instead, have a Yamaha deal-
er check the vehicle.
If a spark plug shows signs of elec-
trode erosion and excessive carbon or
other deposits, it should be replaced.
1. Panel C
2. Bolt and washer
1. Panel D
2. Bolt and washer
2 2
1
2 2 1
1. Projection
2. Panel C
1. Projection
2. Panel D
21 1
2
1 1
UB3LE0E0.book Page 12 Tuesday, July 23, 2019 12:05 PM

11-1
11
IndexAABS warning light ................................... 4-7
Air filter element .................................... 7-18
Auxiliary DC connector ......................... 4-49
Auxiliary system warning light ................ 4-8BBattery .................................................. 7-33
Brake and clutch levers, checking and
lubricating ........................................... 7-30
Brake and shift pedals, checking and lubricating ........................................... 7-30
Brake control system (BC) .................... 4-33
Brake fluid, changing ............................ 7-26
Brake fluid level, checking .................... 7-25
Brake lever ............................................ 4-33
Brake lever free play, checking............. 7-24
Brake light switches.............................. 7-24
Brake pedal........................................... 4-33CCables, checking and lubricating ......... 7-29
Canister................................................. 7-13
Care ........................................................ 8-1
Catalytic converter ................................ 4-38
CCU ...................................................... 4-39
Clutch lever ........................................... 4-32
Clutch lever free play, adjusting ........... 7-23
Coolant ................................................. 7-17
Cowlings and panels, removing and installing................................................ 7-9DData recording, vehicle ......................... 10-2
Diagnostic connector............................ 10-2
Dimmer switch ........................................ 4-4
Display, main screen............................... 4-9 Display, menu screen ........................... 4-15
Document storage ................................ 4-41
Drive chain, cleaning and lubricating ... 7-28
Drive chain slack .................................. 7-27
EEngine break-in ...................................... 6-1
Engine idling speed, checking ............. 7-19
Engine oil and oil filter
cartridge ........... 7-14
Engine overheating ............................... 7-40
Engine serial number ............................ 10-1
EXUP system........................................ 4-48FFront and rear brake pads, checking ... 7-25
Front fork, adjusting ............................. 4-42
Front fork, checking ............................. 7-32
Fuel ....................................................... 4-35
Fuel consumption, tips for reducing ...... 6-4
Fuel level warning light ........................... 4-6
Fuel tank cap ........................................ 4-35
Fuel tank overflow hose ....................... 4-37
Fuses, replacing ................................... 7-35GGlossary ................................................. 3-5HHandlebar 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 ............... 4-50
Immobilizer system ................................ 4-1
Immobilizer system indicator light .......... 4-7
Indicator lights and warning lights ......... 4-5
MMain switch/steering lock .......................4-2
Maintenance and lubrication, periodic....7-5
Maintenance, emission control
system ..................................................7-3
Malfunction indicator light (MIL)..............4-6
Matte color, caution ................................8-1
Model label ...........................................10-1NNeutral 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
Seat cover .............................................4-40
Seats .....................................................4-38
Shift indicator light ..................................4-7
Shifting ....................................................6-3
Shift pedal .............................................4-32
Shock absorber assembly, adjusting ....4-45
Sidestand ..............................................4-49
Sidestand, checking and lubricating.....7-31
Spark plugs, checking ..........................7-12
Special features ......................................3-1
Specifications .........................................9-1
Stability control indicator light ................4-8
Starting the engine ..................................6-2
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