2018 YAMAHA YZF-R3 maintenance

Periodic maintenance an d a djustment
6-37
6 5. Insert a new bulb into the socket.
6. Install the socket (together with
the bulb) by pushing it in.
7. Install the rear fender lower panel by installing the bolts and screws.
8. Install the mudguard by installing the quick fasteners.
EAU24351
Supportin g the motorcycle
Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other mainte-
nance requiring the motorcycle to
stand upright. Check that the motorcy-
cle is in a stable and level position be-
fore starting any maintenance. A
strong wooden box can be placed un-
der the engine for added stability.
To service the front wheel
1. Stabilize the rear of the motorcy- cle by using a motorcycle stand
or, if an additional motorcycle
stand is not available, by placing a
jack under the frame in front of the
rear wheel.
2. Raise the front wheel off the ground by using a motorcycle
stand.
To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placing
a jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
1. License plate light bulb
2. License plate light bulb socket
2
1
UBR5E0E0.book Page 37 Wednesday, July 5, 2017 11:10 AM

Periodic maintenance an d a djustment
6-38
6
EAU25872
Trou bleshootin g
Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur
during operation. Any problem in the
fuel, compression, or ignition systems,
for example, can cause poor starting
and loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWA15142
When checkin g the fuel system, d o
not smoke, an d make sure there are
no open flames or sparks in the ar-
ea, inclu din g pilot li ghts from water
heaters or furnaces. Gasoline or
g asoline vapors can i gnite or ex-
plo de, causin g severe injury or prop-
erty damag e.
UBR5E0E0.book Page 38 Wednesday, July 5, 2017 11:10 AM

Periodic maintenance an d a djustment
6-39
6
EAU63470
Trou bleshootin g charts
Startin g pro blems or poor en gine performance
1. FuelThere is enough fuel.
There is no fuel.
Check the battery.
Supply fuel.
The engine turns over
quickly.
The engine turns over
slowly.
The engine does not
start.
Check the battery.
Wipe off with a dry
cloth and correct the
spark plug gaps, or
replace the spark
plugs.
Check the battery
lead connections, and
have a Yamaha dealer
charge the battery if
necessary.
2. BatteryThe battery is good.
The engine does not
start.
Check the ignition.
3. IgnitionWetOperate the electric
starter.
Dry
There is compression.
There is no
compression.
The engine does not start.
Have a Yamaha dealer check the vehicle.
Have a Yamaha dealer check the vehicle.
The engine does not
start.
Check the
compression.Have a Yamaha
dealer check the
vehicle.
Remove the spark
plugs and check
the electrodes.
Operate the electric
starter.
Operate the electric
starter.
Check the fuel level
in the fuel tank.
4. Compression
UBR5E0E0.book Page 39 Wednesday, July 5, 2017 11:10 AM

Periodic maintenance an d a djustment
6-40
6
En
gine overheatin g
WARNING
EWAT1041
Do not remove the rad iator cap when the engine an d ra diator are hot.
Scal din g hot flui d an d steam may b e blown 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 rad iator cap, and then slowly ro-
tate the cap counterclockwise to the d etent to allow any residual pres-
sure to escape. When the hissin g soun d has stoppe d, press d own on the
cap while turnin g it counterclockwise, an d then remove the cap.
TIP
If coolant is not available, tap water can be temporarily used instead, provided
that it is changed to the recommended coolant as soon as possible.
Wait until the engine
has cooled.
Check the coolant
level in the reservoir
and radiator.Add coolant.
(See TIP.)
The coolant level is
OK.
There is no leakage.
There is leakage.
The coolant level is
low.
Check the cooling
system for leakage.
Have a Yamaha
dealer check and
repair the cooling
system.
Start the engine. If the engine overheats again,
have a Yamaha dealer check and repair the cooling
system.
UBR5E0E0.book Page 40 Wednesday, July 5, 2017 11:10 AM

Consumer information
9-3
9
EAU74702
Vehicle data recor din g
This model’s ECU stores certain vehi-
cle data to assist in the diagnosis of
malfunctions and for research and de-
velopment purposes. This data will be
uploaded only when a special Yamaha
diagnostic tool is attached to the vehi-
cle, such as when maintenance checks
or service procedures are performed.
Although the sensors and recorded
data will vary by model, the main data
points are:
 Vehicle status and engine perfor-
mance data
 Fuel-injection and emission-relat-
ed data
Yamaha will not disclose this data to a third party except:  With the consent of the vehicle
owner
 Where obligated by law
 For use by Yamaha in litigation
 For general Yamaha-conducted
research purposes when the data
is not related to an individual vehi-
cle nor owner
UBR5E0E0.book Page 3 Wednesday, July 5, 2017 11:10 AM

10-1
10
Index
A
ABS ...................................................... 3-14
ABS warning light ................................... 3-3
Air filter element and check hose,
replacing and cleaning ....................... 6-13
Auxiliary light bulb ................................ 6-35
B
Battery .................................................. 6-30
Brake and clutch levers,
checking and lubricating .................... 6-27
Brake and shift pedals, checking and lubricating .................... 6-26
Brake fluid, changing ........................... 6-23
Brake fluid level, checking ................... 6-22
Brake lever ........................................... 3-13
Brake lever free play, checking ............ 6-20
Brake light switches ............................. 6-20
Brake pedal .......................................... 3-14
C
Cables, checking and lubricating ......... 6-25
Canister .................................................. 6-8
Care ........................................................ 7-1
Catalytic converter ............................... 3-18
Clutch lever .......................................... 3-12
Clutch lever free play, adjusting ........... 6-18
Coolant ................................................. 6-11
D
Data recording, vehicle .......................... 9-3
Diagnostic connector ............................. 9-2
Dimmer switch ..................................... 3-11
Drive chain, cleaning and lubricating ... 6-25
Drive chain slack .................................. 6-23
E
Engine break-in ...................................... 5-4
Engine oil and oil filter cartridge ............. 6-8
Engine serial number.............................. 9-1
Engine stop switch ............................... 3-12
Engine trouble warning light................... 3-3
F
Front and rear brake pads, checking ... 6-21
Front fork, checking ............................. 6-28
Fuel....................................................... 3-16
Fuel tank cap........................................ 3-15
Fuel tank overflow hose ....................... 3-17
Fuses, replacing ................................... 6-31
H
Handlebar switches.............................. 3-11
Headlight bulb, replacing ..................... 6-33
Helmet holders ..................................... 3-20
High beam indicator light ....................... 3-2 Horn switch........................................... 3-12
I
Identification numbers ............................ 9-1
Ignition circuit cut-off system ............... 3-24
Indicator lights and warning lights .......... 3-2
L
License plate light bulb, replacing ........ 6-36
Luggage strap holders .......................... 3-23
M
Main switch/steering lock ....................... 3-1
Maintenance and lubrication, periodic ... 6-4
Maintenance, emission control
system .................................................. 6-3
Matte color, caution ................................ 7-1
Model label ............................................. 9-1
Multi-function meter unit ........................ 3-4
N
Neutral indicator light.............................. 3-2
O
Oil pressure warning light ....................... 3-2
P
Parking .................................................... 5-4
Part locations .......................................... 2-1
Pass switch........................................... 3-11
R
Rear view mirrors .................................. 3-21
S
Safety information................................... 1-1
Seats ..................................................... 3-18
Shifting .................................................... 5-3
Shift pedal............................................. 3-13
Shift timing indicator light ....................... 3-4
Shock absorber assembly, adjusting ... 3-22
Sidestand .............................................. 3-23
Sidestand, checking and lubricating .... 6-27
Spark plugs, checking ............................ 6-7
Specifications ......................................... 8-1
Starting the engine.................................. 5-2
Start switch ........................................... 3-12
Steering, checking ................................ 6-29
Storage ................................................... 7-4
Storage compartment ........................... 3-21
Supporting the motorcycle ................... 6-37
Swingarm pivots, lubricating ................ 6-28
T
Tail/brake light ...................................... 6-35
Throttle grip and cable, checking and lubricating .................... 6-26
Throttle grip free play, checking ........... 6-15
Tires ...................................................... 6-16
UBR5E0E0.book Page 1 Wednesday, July 5, 2017 11:10 AM