2018 YAMAHA YZF-R3 ignition

Periodic maintenance an d a djustment
6-33
6 3. Turn the key to “ ” and turn on
the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows again, have a Yamaha dealer
check the electrical system.
EAU39014
Replacin g a hea dlig ht bul b
This model is equipped with halogen
bulb headlights. If a headlight bulb
burns out, replace it as follows.
NOTICE
ECA10651
Take care not to damag e the follow-
in g parts:
 Hea dlig ht bul b
Do not touch the glass part of
the hea dlig ht bul b to keep it free
from oil, otherwise the transpar-
ency of the glass, the luminosity
of the b ulb, an d the bul b life will
b e ad versely affected . Thor-
ou ghly clean off any d irt and fin-
g erprints on the hea dlig ht bul b
usin g a cloth moistene d with al-
cohol or thinner.
 Hea dlig ht lens
Do not affix any type of tinted
film or stickers to the head light
lens.
Do not use a hea dlig ht bul b of a
watta ge hi gher than specifie d.
1. Remove the headlight bulb cover
by turning it counterclockwise.
Specifie d fuses:
Main fuse: 30.0 A
Headlight fuse:
15.0 A
Signaling system fuse: 7.5 A
Ignition fuse: 15.0 A
Radiator fan motor fuse:
7.5 A
ABS motor fuse: 30.0 A
ABS solenoid fuse: 15.0 A
ABS control unit fuse:
7.5 A
Backup fuse: 7.5 A
1. Do not touch the glass part of the bulb.
UBR5E0E0.book Page 33 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

Specifications
8-2
8
5th:0.920 (23/25)
6th: 0.800 (24/30)
Chassis:
Frame type:Diamond
Caster angle: 25.0 °
Trail:
95 mm (3.7 in)
Front tire:
Type:Tubeless
Size: 110/70-17M/C (54H)
Manufacturer/model:
MICHELIN/PILOT STREET
Rear tire:
Type:Tubeless
Size:
140/70-17M/C (66H)
Manufacturer/model: MICHELIN/PILOT STREET
Loa din g:
Maximum load:
160 kg (353 lb)
(Total weight of rider, passenger, cargo
and accessories)
Tire air pressure (measure d on col d
tires):
1 person:
Front:
200 kPa (2.00 kgf/cm2, 29 psi)
Rear: 250 kPa (2.50 kgf/cm2, 36 psi)
2 persons: Front:200 kPa (2.00 kgf/cm2, 29 psi)
Rear: 250 kPa (2.50 kgf/cm2, 36 psi)
Front wheel:
Wheel type:Cast wheel
Rim size: 17M/C x MT2.75
Rear wheel:
Wheel type:Cast wheel Rim size:
17M/C x MT4.00
Front brake:
Type:
Hydraulic single disc brake
Specified brake fluid: DOT 4
Rear brake:
Type:
Hydraulic single disc brake
Specified brake fluid: DOT 4
Front suspension:
Type:
Telescopic fork
Spring:
Coil spring
Shock absorber: Hydraulic damper
Wheel travel: 130 mm (5.1 in)
Rear suspension:
Type:Swingarm
Spring: Coil spring
Shock absorber:
Hydraulic damper
Wheel travel: 125 mm (4.9 in)
Electrical system:
System voltage:
12 V
Ignition system: TCI
Charging system: AC magneto
Battery:
Model:GTZ8V
Voltage, capacity: 12 V, 7.0 Ah (10 HR)
Hea dlig ht:
Bulb type:
Halogen bulb
Bul b watta ge:
Headlight:
H7, 55.0 W (Hi)
Headlight: H7, 55.0 W (Lo)
UBR5E0E0.book Page 2 Wednesday, July 5, 2017 11:10 AM

Specifications
8-3
8
Brake/tail light:LED
Front turn signal light: 10.0 W
Rear turn signal light:
10.0 W
Auxiliary light: 5.0 W
Meter lighting: LED
Neutral indicator light:
LED
High beam indicator light: LED
Oil pressure warning light: LED
Turn signal indicator light: LED
Engine trouble warning light:
LED
ABS warning light: LED
Fuse(s):
Main fuse:
30.0 A
Headlight fuse: 15.0 A
Signaling system fuse: 7.5 A
Ignition fuse:
15.0 A
Radiator fan motor fuse: 7.5 A
ABS control unit fuse: 7.5 A
ABS motor fuse:
30.0 A
ABS solenoid fuse: 15.0 A
Backup fuse: 7.5 A
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