
Table of contents
Checking the wheel bearings ....... 6-28
Battery .......................................... 6-28
Replacing the fuses ...................... 6-30
Replacing the headlight bulb ........ 6-32
Replacing the auxiliary light bulb ........................................... 6-34
Brake/tail light ............................... 6-34
Replacing a turn signal light
bulb ........................................... 6-35
License plate light......................... 6-35
Supporting the motor cycle............ 6-36
Troubleshooting............................ 6-36
Troubleshooting charts ................. 6-37
Motorcycle care and storage .......... 7-1
Matte color caution ......................... 7-1
Care................................................ 7-1
Storage ........................................... 7-3
Specifications .................................. 8-1
Consumer information .................... 9-1
Identification numbers .................... 9-1
Diagnostic connector ... ................... 9-2
Vehicle data recording.................... 9-2
Index ............................................... 10-1
UB90E2.book 2 ページ 2018年6月5日 火曜日 午後5時40分

Periodic maintenance and adjustment
6-32
1
2
3
4
56
7
8
9
10
11
12 3. Turn the key to “ON” 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.
EAU34386
Replacing the headlight bulbThis model is equipped with a halogen
bulb headlight. If the headlight bulb
burns out, replace it as follows.NOTICE
ECA10651
Take care not to damage the follow-
ing parts:
Headlight bulb
Do not touch the glass part of
the headlight bulb to keep it free
from oil, otherwise the transpar-
ency of the glass, the luminosity
of the bulb, and the bulb life will
be adversely affected. Thor-
oughly clean off any dirt and fin-
gerprints on the headlight bulb
using a cloth moistened with al-
cohol or thinner.
Headlight lens
Do not affix any type of tinted
film or stickers to the headlight
lens.
Do not use a headlight bulb of awattage higher than specified.
Specified fuses:
Main fuse:50.0 A
Headlight fuse:
15.0 A
Signaling system fuse: 7.5 A
Ignition fuse: 15.0 A
Parking lighting fuse:
7.5 A
Radiator fan motor fuse: 15.0 A
ABS motor fuse: 30.0 A
ABS solenoid fuse:
15.0 A
Fuel injection system fuse: 10.0 A
ABS control unit fuse: 7.5 A
Backup fuse:
7.5 A
Electronic thrott le valve fuse:
7.5 A
Auxiliary fuse 1: 2.0 A
UB90E2.book 32 ページ 2018年6月5日 火曜日 午後5時40分

Periodic maintenance and adjustment6-33
1
2
3
4
567
8
9
10
11
12
1. Remove the headlight unit by re-
moving the bolts on each side.
2. Disconnect the headlight coupler, and then remove the headlight
bulb cover. 3. Unhook the headlight bulb holder,
and then remove the burnt-out
bulb.
4. Place a new headlight bulb into po- sition, and then secure it with the
bulb holder.
5. Install the headlight bulb cover, and then connect the coupler.
6. Install the headlight unit by install- ing the bolts.
7. Have a Yamaha dealer adjust the headlight beam if necessary.
1. Do not touch the glass part of the bulb.
1. Bolt
1
1. Headlight bulb cover
2. Headlight coupler
1. Headlight bulb holder
2. Headlight bulb
1 2
1
2
UB90E2.book 33 ページ 2018年6月5日 火曜日 午後5時40分

Periodic maintenance and adjustment
6-34
1
2
3
4
56
7
8
9
10
11
12
EAU45226
Replacing the auxi liary light
bulbIf the auxiliary light bulb burns out, re-
place it as follows.
1. Remove the headlight unit. (See page 6-32.)
2. Remove the auxiliary light bulb socket (together with the bulb) by
pulling it out.
3. Remove the burnt-out bulb by pull- ing it out. 4. Insert a new bulb into the socket.
5. Install the socket (together with the
bulb) by pushing it in.
6. Install the headlight unit.
EAU70540
Brake/tail lightThis model is equipped with an
LED-type brake/tail light.
If the brake/tail light does not come on,
have a Yamaha dealer check it.
1. Auxiliary light bulb socket
1
1. Auxiliary light bulb
1
UB90E2.book 34 ページ 2018年6月5日 火曜日 午後5時40分

Specifications
8-2
1
2
3
4
5
6
78
9
10
11
12
6th: 1.037 (28/27)
Chassis:Frame type: Diamond
Caster angle: 25.0
Trail:
103 mm (4.1 in)Front tire:Type:Tubeless
Size:
120/70 ZR17M/C(58W)
Manufacturer/model: BRIDGESTONE/S20F MRear tire:Type:
Tubeless
Size: 180/55 ZR17M/C (73W)
Manufacturer/model: BRIDGESTONE/S20R MLoading:Maximum load:170 kg (375 lb)
* (Total weight of rider, passenger, cargo and accessories)Tire air pressure (measured on cold
tires):1 person:Front:250 kPa (2.50 kgf/cm
2, 36 psi) Rear:
290 kPa (2.90 kgf/cm
2, 42 psi)
2 persons:
Front: 250 kPa (2.50 kgf/cm2, 36 psi)
Rear:
290 kPa (2.90 kgf/cm2, 42 psi)
Front wheel:Wheel type:Cast wheel
Rim size:
17M/C x MT3.50Rear wheel:Wheel type:Cast wheel
Rim size:
17M/C x MT5.50Front brake:Type:Hydraulic dual disc brake
Specified brake fluid:
DOT 4Rear brake:Type:Hydraulic single disc brake
Specified brake fluid:
DOT 4Front suspension:Type:Telescopic fork
Spring:
Coil spring
Shock absorber: Hydraulic damper Wheel travel:
137 mm (5.4 in)
Rear suspension:Type:Swingarm (link suspension)
Spring: Coil spring
Shock absorber:
Gas-hydraulic damper
Wheel travel: 130 mm (5.1 in)Electrical system:System voltage:
12 V
Ignition system: TCI
Charging system: AC magnetoBattery:Model:YTZ10S
Voltage, capacity: 12 V, 8.6 Ah (10 HR)Headlight:Bulb type:Halogen bulbBulb wattage:Headlight:
H4, 60.0 W/55.0 W
Brake/tail light: LED
Front turn signal light: 10.0 W
UB90E2.book 2 ページ 2018年6月5日 火曜日 午後5時40分

10-1
1
2
3
4
5
6
7
8
910
11
12
IndexAABS ....................................................... 3-17
ABS warning light.................................... 3-5
Air filter element .................................... 6-14
Auxiliary DC connector ......................... 3-30
Auxiliary light bulb, replacing ................ 6-34BBattery................................................... 6-28
Brake and clutch levers, checking and lubricating ........................................... 6-26
Brake and shift pedals, checking and lubricating ........................................... 6-25
Brake fluid, changing ............................ 6-22
Brake fluid level, checking .................... 6-20
Brake lever ............................................ 3-16
Brake lever free play, checking ............. 6-19
Brake light switches .............................. 6-19
Brake pedal ........................................... 3-17
Brake/tail light ....................................... 6-34CCables, checking and lubricating .......... 6-24
Canister................................................. 6-10
Care ........................................................ 7-1
Catalytic converter ................................ 3-22
Clutch lever ........................................... 3-15
Clutch lever free play, adjusting ............ 6-18
Coolant.................................................. 6-13
Coolant temperature warning light .......... 3-4DData recording, vehicle ........................... 9-2
Diagnostic connector .............................. 9-2
Dimmer switch ...................................... 3-14
D-mode (drive mode) ............................ 3-13
Drive chain, cleaning and lubricating .... 6-24 Drive chain slack .................................. 6-22
EEngine break-in ...................................... 5-3
Engine idling speed, checking .............. 6-14
Engine oil .............................................. 6-10
Engine serial number.............................. 9-1
Engine trouble warning light ................... 3-5FFront and rear brake
pads, checking .... 6-20
Front fork, adjusting .............................. 3-24
Front fork, checking .............................. 6-27
Fuel....................................................... 3-20
Fuel consumption, tips for reducing........ 5-3
Fuel tank cap ........................................ 3-19
Fuel tank overflow hose and breather hose ................................................... 3-22
Fuses, replacing ................................... 6-30HHandlebar switches .............................. 3-14
Hazard switch ....................................... 3-15
Headlight bulb, replacing ...................... 6-32
High beam indicator light ........................ 3-4
Horn switch ........................................... 3-14IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ................ 3-28
Immobilizer system ................................. 3-1
Immobilizer system indicator light........... 3-5
Indicator lights and warning lights .......... 3-4LLicense plate light ................................. 6-35
Luggage strap holders .......................... 3-27MMain switch/steering lock........................ 3-2 Maintenance and lubrication, periodic..... 6-5
Maintenance, emission control system ... 6-3
Matte color, caution ................................. 7-1
Model label .............................................. 9-2
Multi-function meter unit .......................... 3-6
NNeutral indicator light .............................. 3-4OOil level warning light .............................. 3-4PParking .................................................... 5-4
Part locations .......................................... 2-1
Pass switch ........................................... 3-14SSafety information ................................... 1-1
Seat ....................................................... 3-23
Shifting .................................................... 5-2
Shift pedal ............................................. 3-16
Shock absorber assembly, adjusting .... 3-25
Sidestand .............................................. 3-27
Sidestand, checking an
d lubricating...... 6-26
Spark plugs, checking ............................. 6-9
Specifications .......................................... 8-1
Starting the engine .................................. 5-1
Steering, checking................................. 6-28
Stop/Run/Start switch............................ 3-15
Storage.................................................... 7-3
Storage compartment............................ 3-23
Supporting the motorcycle .................... 6-36
Swingarm pivots, lubricating ................. 6-27TThrottle grip and cable, checking and lubricating ........................................... 6-25
Throttle grip free play, checking ............ 6-15
UB90E2.book 1 ページ 2018年6月5日 火曜日 午後5時40分