Page 26 of 88

Instrument and control functions
3-11
3
EAU13125
Fuel tank capTo remove the fuel tank cap
Slide the fuel tank cap lock cover open,
insert the key into the lock, and then
turn it 1/4 turn clockwise. The lock will
be released and the fuel tank cap can
be removed.
To install the fuel tank cap
1. Insert the fuel tank cap into the tank opening with the key inserted
in the lock and with the “ ” mark
facing forward. 2. Turn the key counterclockwise to
the original position, remove it,
and then close the lock cover.
TIPThe fuel tank cap cannot be installed
unless the key is in the lock. In addi-
tion, the key cannot be removed if the
cap is not properly installed and
locked.
WARNING
EWA10132
Make sure that the fuel tank cap is
properly installe d before ri din g.
Leakin g fuel is a fire hazar d.
EAU13222
FuelMake sure there is sufficient gasoline in
the tank.
WARNING
EWA10882
Gasoline an d g asoline vapors are
extremely flamma ble. To avoi d fires
an d explosions an d to re duce the
risk of injury when refuelin g, follow
these instructions.1. Before refueling, turn off the en- gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters
and clothes dryers.
2. Do not overfill the fuel tank. When refueling, be sure to insert the
pump nozzle into the fuel tank filler
hole. Stop filling when the fuel
reaches the bottom of the filler
tube. Because fuel expands when
it heats up, heat from the engine or
the sun can cause fuel to spill out
of the fuel tank.
1. Fuel tank cap lock cover
2. “ ” mark
3. Lock.
4. Unlock.
1 2
3
4
U2SSE2E0.book Page 11 Monday, July 20, 2015 2:28 PM
Page 28 of 88

Instrument and control functions
3-13
3
EAU39453
Fuel tank breather/overflow
hoseBefore operating the motorcycle:
Check the fuel tank breather/over-
flow hose connection.
Check the fuel tank breather/over-
flow hose for cracks or damage,
and replace it if necessary.
Make sure that the end of the fuel
tank breather/overflow hose is not
blocked, and clean it if necessary.
EAU13434
Catalytic converterThis model is equipped with a catalytic
converter in the exhaust system.
WARNING
EWA10863
The exhaust system is hot after op-
eration. To prevent a fire hazar d or
b urns:
Do not park the vehicle near
possi ble fire hazard s such as
g rass or other materials that
easily burn.
Park the vehicle in a place
where ped estrians or chil dren
are not likely to touch the hot
exhaust system.
Make sure that the exhaust sys-
tem has coole d down before
d oin g any maintenance work.
Do not allow the en gine to i dle
more than a few minutes. Lon g
i d lin g can cause a b uild-up of
heat.
NOTICE
ECA10702
Use only unlea ded g asoline. The use
of lead ed g asoline will cause unre-
pairab le damag e to the catalytic
converter.
1. Fuel tank breather/overflow hose
1
U2SSE2E0.book Page 13 Monday, July 20, 2015 2:28 PM
Page 29 of 88
Instrument and control functions
3-14
3
EAU50681
SeatTo remove the seat
1. Insert the key into the seat lock, turn it counterclockwise, and then
lift the front of the seat up.
2. Pull the seat forward as shown to unhook it from the center seat
holder. 3. Pull the seat rearward to unhook it
from the rear seat holder, and then
pull it off.
To install the seat 1. Insert the projection on the rear of the seat into the rear seat holder. 2. Slide the seat rearward to fit the
slot in its bottom over the center
seat holder.
3. Push the front of the seat down to lock it in place.
4. Remove the key.
TIPMake sure that the seat is properly se-
cured before riding.
1. Seat lock
2. Unlock.
2
1
1. Center seat holder
1. Rear seat holder1
1
1. Projection
2. Rear seat holder
3. Slot
4. Center seat holder12
3
4
U2SSE2E0.book Page 14 Monday, July 20, 2015 2:28 PM
Page 57 of 88

Periodic maintenance an d a djustment
6-17
6
ageing. Old and aged tires shall be
checked by tire specialists to ascertain
their suitability for further use.
WARNING
EWA10462
The front an
d rear tires shoul d b e of
the same make an d d esi gn, other-
wise the han dlin g characteristics of
the vehicle may be different, which
coul d lea d to an acci dent.After extensive tests, only the tires list-
ed below have been approved for this
model by Yamaha.
EAU21963
Cast wheelsTo maximize the performance, durabil-
ity, and safe operation of your vehicle,
note the following points regarding the
specified wheels.
The wheel rims should be
checked for cracks, bends, warp-
age or other damage before each
ride. If any damage is found, have
a Yamaha dealer replace the
wheel. Do not attempt even the
smallest repair to the wheel. A de-
formed or cracked wheel must be
replaced.
The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced. An
unbalanced wheel can result in
poor performance, adverse han-
dling characteristics, and a short-
ened tire life.
EAU50701
Adjustin g the clutch lever free
playThe clutch lever free play should mea-
sure 5.0–10.0 mm (0.20–0.39 in) as
shown. Periodically check the clutch
lever free play and, if necessary, adjust
it as follows.
1. Loosen the locknut at the clutch lever.
2. To increase the clutch lever free play, turn the clutch lever free play
adjusting bolt in direction (a). To
decrease the clutch lever free
play, turn the adjusting bolt in di-
rection (b).
Front tire:Size:120/70 21M/C 62H
Manufacturer/model: BRIDGESTONE/EXEDRA G721 G
Rear tire:
Size:210/40R18M/C 73H
Manufacturer/model:
BRIDGESTONE/EXEDRA G852
RADIAL G
1. Clutch lever free play
2. Locknut
3. Clutch lever free play adjusting bolt
3(a)(b)
2
1
U2SSE2E0.book Page 17 Monday, July 20, 2015 2:28 PM
Page 58 of 88

Periodic maintenance an d a djustment
6-18
6
TIPIf the specified clutch lever free play
could be obtained as described above,
skip steps 3–6.3. Fully turn the adjusting bolt in di-
rection (a) to loosen the clutch ca-
ble.
4. Slide the rubber covers apart, and then loosen the locknut.
5. 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 di-
rection (b). 6. Tighten the locknut at the clutch
cable, and then slide the rubber
covers to their original positions.
7. Tighten the locknut at the clutch lever.
EAU37914
Checkin g the brake 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 spon gy feelin g in the brake
lever can in dicate the presence of
air in the hy draulic system. If there is
air in the hy draulic system, have a
Yamaha dealer blee d the system b e-
fore operatin g the vehicle. Air in the
hy draulic system will d iminish the
1. Rubber cover
2. Locknut
3. Clutch lever free play adjusting nut
(a)
1
(b)
1
2
3
1. No brake lever free play
1
U2SSE2E0.book Page 18 Monday, July 20, 2015 2:28 PM
Page 61 of 88

Periodic maintenance an d a djustment
6-21
6
Use only the specifie d b rake flu-
i d ; otherwise, the ru bber seals
may deteriorate, causin g leak-
a g e.
Refill with the same type of
brake flui d. A ddin g a brake flui d
other than DOT 4 may result in a
harmful chemical reaction.
Be careful that water d oes not
enter the brake flui d reservoir
when refillin g. Water will si gnifi-
cantly lower the boilin g point of
the flui d an d may result in vapor
lock.
NOTICE
ECA17641
Brake flui d may d amage painte d
surfaces or plastic parts. Always
clean up spille d flui d imme diately.As the brake pads wear, it is normal for
the brake fluid level to gradually go
down. A low brake fluid level may indi-
cate worn brake pads and/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 riding.
EAU22733
Chan
gin g the brake flui dHave a Yamaha dealer change the
brake fluid at the intervals specified in
the periodic maintenance and lubrica-
tion chart. In addition, have the oil seals
of the master cylinders and calipers as
well as the brake hoses replaced at the
intervals listed below or whenever they
are damaged or leaking.
Oil seals: Replace every two
years.
Brake hoses: Replace every four
years.
U2SSE2E0.book Page 21 Monday, July 20, 2015 2:28 PM
Page 69 of 88

Periodic maintenance an d a djustment
6-29
6
TIPTo access the fuel injection system
fuse, remove the starter relay cover by
pulling it upward.
If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off the electrical circuit in question.
2. Remove the blown fuse, and then install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a hi gher ampera ge
ratin g than recommen ded to
avoi d causin g extensive dam-
a g e to the electrical system an d
possi bly a fire.
[EWA15132]
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.
1. Signaling system fuse
2. Ignition fuse
3. Parking lighting fuse
4. Radiator fan motor fuse
5. Backup fuse (for clock)
6. Headlight fuse
7. Spare fuse
1. Fuel injection system spare fuse
2. Starter relay cover
3. Fuel injection system fuse
32
1
Specified fuses:
Main fuse:
50.0 A
Headlight fuse:
20.0 A
Signaling system fuse: 10.0 A
Ignition fuse: 15.0 A
Parking lighting fuse:
10.0 A
Radiator fan motor fuse: 20.0 A
Fuel injection system fuse: 10.0 A
Backup fuse:
10.0 A
U2SSE2E0.book Page 29 Monday, July 20, 2015 2:28 PM
Page 75 of 88

Periodic maintenance an d a djustment
6-35
6
En
gine overheatin g
WARNING
EWAT1041
Do not remove the ra diator cap when the en gine an d ra diator are hot. Scal din g hot flui d an d steam may be
b lown 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 ra diator cap, an d then slowly rotate the cap counterclockwise to the
d etent to allow any resi dual pressure to escape. When the hissin g soun d has stoppe d, press down on the cap
while turnin g it counterclockwise, an d then remove the cap.TIPIf coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool-
ant as 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.
U2SSE2E0.book Page 35 Monday, July 20, 2015 2:28 PM