lock YAMAHA YZF-R3 2015 User Guide

INSTRUMENT AND CONTROL FUNCTIONS
3-17
3
EAUN0790
Fuel tank breather hose an d
overflow hoseBefore operating the motorcycle:
 Check each hose connection.
 Check each hose for cracks or
damage, and replace if necessary.
 Make sure that the end of each
hose is not blocked, and clean if
necessary.
 Make sure that the end of fuel tank
breather hose is positioned out-
side of the cowling.
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 overflow hose
2. Fuel tank breather hose
2
1
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INSTRUMENT AND CONTROL FUNCTIONS
3-18
3
EAU62621
SeatsPassenger seat
To remove the passenger seat1. Insert the key into the seat lock, and then turn it clockwise.
2. While holding the key in that posi- tion, lift the rear of the passenger
seat and pull it off. To install the passenger seat
1. Insert the projections on the front
of the passenger seat into the seat
holders as shown, and then push
the rear of the seat down to lock it
in place.
2. Remove the key.
Ri der seat
To remove the rider seat1. Remove the passenger seat.
2. Remove the center cover by re- moving the screws. 3. Remove the rider seat by remov-
ing the bolts.
1. Passenger seat lock
2. Unlock.
2 1
1. Projection
2. Seat holder
1
2
2
1. Center cover
2. Screw
1. Rider seat
2. Bolt1 2
12
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-17
6ageing. 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.
EAU62662
Adjustin g the clutch lever free
playThe clutch lever free play should mea-
sure 10.0–15.0 mm (0.39–0.59 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:110/70-17M/C (54H)
Manufacturer/model: MICHELIN/PILOT STREET
Rear tire:
Size:140/70-17M/C (66H)
Manufacturer/model:
MICHELIN/PILOT STREET
1. Clutch lever free play adjusting bolt
2. Locknut
3. Clutch lever free play3
2
1
(a)(b)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-18
6
TIPIf the specified clutch lever free play
could be obtained as described above,
skip steps 3–8.3. Fully turn the adjusting bolt at theclutch lever in direction (a) to loos-
en the clutch cable.
4. Remove the right side cowling by removing the bolts.
5. Loosen the locknut at the crank- case.
6. 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).
7. Tighten the locknut at the crank- case.
8. Install the right side cowling by in- stalling the bolts.
TIPFit the projections on the cowling into
the slots as shown.
9. Tighten the locknut at the clutchlever.
1. Right side cowling
2. Bolt
21
2
2
1. Locknut
2. Clutch lever free play adjusting nut
2(b)(a)
1
1. Slot
2. Projection
3. Right side cowling
3
1
2
21
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-21
6Rear
brake
WARNING
EWA16011
Improper maintenance can result in
loss of brakin g a bility. O bserve
these precautions:  Insufficient brake flui d may al-
low air to enter the b rake sys-
tem, re ducin g brakin g
performance.
 Clean the filler cap before re-
moving . Use only DOT 4 b rake
flui d from a seale d container. 
Use only the specified 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 or dust
d oes not enter the brake flui d
reservoir when refillin g. Water
will si gnificantly lower the boil-
in g point of the flui d an d may re-
sult in vapor lock, an d d ir
t may
clo g the ABS hy draulic unit
valves.
NOTICE
ECA17641
Brake flui d may damag e painted
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.
1. Minimum level markSpecifie d b rake flui d:
DOT 4
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-22
6
EAU22733
Changin 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.
EAU22762
Drive chain slackThe drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU22776
To check the drive chain slack
1. Place the motorcycle on the side- stand.TIPWhen checking and adjusting the drive
chain slack, there should be no weight
on the motorcycle.2. Shift the transmission into the neutral position.
3. Measure the drive chain slack as shown. 4. If the drive chain slack is incorrect,
adjust it as follows.
EAU62980
To a djust the drive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack. 1. Remove the drive chain puller cap, and then loosen the axle nut and
the locknut on each side of the
swingarm.
Drive chain slack:35.0–45.0 mm (1.38–1.77 in)
1. Drive chain slack
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-23
62. To tighten the drive chain, turn the
drive chain slack adjusting bolt on
each side of the swingarm in di-
rection (a). To loosen the drive
chain, turn the adjusting bolt on
each side of the swingarm in di-
rection (b), and then push the rear
wheel forward. NOTICE: Improp-
er drive chain slack will over-
loa d the en gine as well as other
vital parts of the motorcycle an d
can lead to chain slippa ge or
b reakag e. To prevent this from
occurrin g, keep the drive chain
slack within the specifie d limits.
[ECA10572]
TIPUsing the alignment marks on each
side of the swingarm, make sure that
both drive chain pullers are in the same
position for proper wheel alignment.
3. Tighten the axle nut, then the lock-
nuts to their specified torques.
4. Make sure that the drive chain pullers are in the same position,
the drive chain slack is correct,
and the drive chain moves
smoothly.
5. Install the drive chain puller caps.
1. Axle nut
2. Locknut
3. Drive chain puller cap
2
1
3
1. Drive chain slack adjusting nut
1. Alignment marks
2. Drive chain puller
1
(a)(b)
1
2
Ti
ghtenin g torques:
Axle nut: 57 Nm (5.7 m·kgf, 41 ft·lbf)
Locknut:
16 Nm (1.6 m·kgf, 12 ft·lbf)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-30
6
EAUN0820
Replacing the fusesThe main fuse is located under the
passenger seat. (See page 3-18.)
To access the main fuse, proceed as
follows.
1. Remove the passenger seat. (See page 3-18.)
2. Remove the tray by removing the quick fasteners.
3. Pull back the starter relay cover, and then disconnect the starter re-
lay coupler as shown. 4. Connect the starter relay coupler,
and then slide the cover to its orig-
inal position.
5. Place the tray in its original posi- tion, and then install the quick fas-
teners.
6. Install the passenger seat.
Fuse box 1 is located behind the center
cover. (See page 3-18.) Fuse
box 11. Quick fastener
2. Tray
2
1
1. Starter relay cover
2. Starter relay coupler
3. Main fuse
4. Spare main fuse
1
2
34
1. Fuse box 1
1. Ignition fuse
2. Signaling system fuse
3. ABS control unit fuse
4. Backup fuse (for clock)
5. Headlight fuse
6. Radiator fan motor fuse
7. Spare fuse17
123
56
4
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-32
6
EAU39014
Replacing a hea dlig ht bul bThis 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 g lass, the luminosity
of the b ulb, an d the b ulb life will
b e ad versely affected . Thor-
ou ghly clean off any d irt and fin-
g erprints on the head light bul b
using 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 specified .
1. Remove the headlight bulb cover
by turning it counterclockwise.
2. Disconnect the headlight coupler. 3. Unhook the headlight bulb holder,
and then remove the burnt-out
bulb.
4. Place a new headlight bulb into position, and then secure it with
the bulb holder.
5. Connect the headlight coupler.1. Do not touch the glass part of the bulb.
1. Headlight bulb cover1
1. Headlight coupler
1. Headlight bulb holder
1
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-33
66. Install the headlight bulb cover by
turning it clockwise.
7. Have a Yamaha dealer adjust the headlight beam if necessary.
EAU39021
Auxiliary li ght bul bIf the auxiliary light does not come on,
have a Yamaha dealer check the elec-
trical circuit or replace the bulb.
EAU24182
Tail/ brake li ghtThis model is equipped with an LED-
type tail/brake light.
If the tail/brake light does not come on,
have a Yamaha dealer check it.
1. Auxiliary light1
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