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Periodic maintenance and adjustment
6-20
6
EAU36505
Brake light switchesThe brake light should come on just
before braking takes effect. The brake
light is activated by switches connect-
ed to the brake lever and brake pedal.
Since the brake light switches are
components of the anti-lock brake sys-
tem, they should only be serviced by a
Yamaha dealer.
EAU22393
Checking the front and rear
brake padsThe front and rear brake pads must be
checked for wear at the intervals spec-
ified in the periodic maintenance and
lubrication chart.
EAU36891
Front brake pads
Each front brake pad is provided with
wear indicators, which allows you to
check the brake pad wear without hav-
ing to disassemble the brake. To check
the brake pad wear, check the position
of the wear indicators while applying
the brake. If a brake pad has worn to
the point that a wear indicator almosttouches the brake disc, have a
Yamaha dealer replace the brake pads
as a set.
EAU46292
Rear brake pads
Each rear brake pad is provided with
wear indicator grooves, which allow
you to check the brake pad wear with-
out having to disassemble the brake.
To check the brake pad wear, check
the wear indicator grooves. If a brake
pad has worn to the point that a wear
indicator groove almost appears, have
a Yamaha dealer replace the brake
pads as a set.
1. Brake pad wear indicatorZAUM1349
1
1
1. Brake pad wear indicator grooveZAUM1375
1
1
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Periodic maintenance and adjustment
6-21
6
EAU40262
Checking the brake fluid levelBefore riding, check that the brake fluid
is above the minimum level mark.
Check the brake fluid level with the top
of the reservoir level. Replenish the
brake fluid if necessary.
Front brakeRear brake
WARNING
EWA16011
Improper maintenance can result in
loss of braking ability. Observe
these precautions:
Insufficient brake fluid may al-
low air to enter the brake sys-
tem, reducing braking
performance.
Clean the filler cap before re-
moving. Use only DOT 4 brake
fluid from a sealed container.Use only the specified brake flu-
id; otherwise, the rubber seals
may deteriorate, causing leak-
age.
Refill with the same type of
brake fluid. Adding a brake fluid
other than DOT 4 may result in a
harmful chemical reaction.
Be careful that water or dust
does not enter the brake fluid
reservoir when refilling. Water
will significantly lower the boil-
ing point of the fluid and may re-
sult in vapor lock, an
d dirt may
clog the ABS hydraulic unit
valves.
NOTICE
ECA17641
Brake fluid may damage painted
surfaces or plastic parts. Always
clean up spilled fluid immediately.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
1. Minimum level markZAUM1350
1
1. Minimum level markSpecified brake fluid:
DOT 4ZAUM1376
1
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Periodic maintenance and adjustment
6-23
6
5. If distance A is incorrect, adjust it
as follows. NOTICE: Improper
drive chain slack will overload
the engine as well as other vital
parts of the motorcycle and can
lead to chain slippage or break-
age. If distance A is more than
58.0 mm (2.28 in), the chain can
damage the frame, swingarm,
and other parts. To prevent this
from occurring, keep the drive
chain slack within the specified
limits.
[ECA23070]EAU59921
To adjust the drive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack.
1. Loosen the locknut at each end of
the swingarm, and then loosen the
axle nut.
2. To tighten the drive chain, turn the
drive chain slack adjusting nut at
each end of the swingarm in direc-
tion (a). To loosen the drive chain,
turn the adjusting nut at each end
of the swingarm in direction (b),
and then push the rear wheel for-
ward.
TIPUsing the alignment marks on each
side of the swingarm, make sure that
both drive chain slack adjusting plates
are in the same position for proper
wheel alignment.
1. Drive chain guide
2. Drive chain slackDistance A:
51.0–56.0 mm (2.01–2.20 in)
2
1
1. Axle nut
2. Locknut
2
1
1. Drive chain slack adjusting nut
1. Alignment marks
2. Drive chain slack adjusting plate
1
(a)(b)
2
1
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Periodic maintenance and adjustment
6-24
6 3. Tighten the axle nut, and then
tighten the locknuts to the speci-
fied torques.
4. Make sure that the drive chain
slack adjusting plates are in the
same position, the drive chain
slack is correct, and the drive
chain moves smoothly.
EAU23026
Cleaning and lubricating the
drive chainThe drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.NOTICE
ECA10584
The drive chain must be lubricated
after washing the motorcycle, riding
in the rain or riding in wet areas.1. Clean the drive chain with kero-
sene and a small soft brush.
NOTICE: To prevent damaging
the O-rings, do not clean the
drive chain with steam cleaners,
high-pressure washers or inap-
propriate solvents.
[ECA11122]
2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive
chain with a special O-ring chain
lubricant. NOTICE: Do not use
engine oil or any other lubri-
cants for the drive chain, as theymay contain substances that
could damage the O-rings.
[ECA11112]
Tightening torques:
Axle nut:
105 N·m (10.5 kgf·m, 77 lb·ft)
Locknut:
16 N·m (1.6 kgf·m, 12 lb·ft)
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Periodic maintenance and adjustment
6-32
6
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 higher amperagerating than recommended to
avoid causing extensive dam-
age to the electrical system and
possibly a fire.
[EWA15132]
1. Starter relay cover
2. Fuse box
3. Spare main fuse
4. Main fuseZAUM1380
2
3
4
1
1. Ignition fuse
2. Signaling system fuse
3. Headlight fuse
4. Backup fuse 2 (for ECU)
5. Backup fuse (for clock and immobilizer sys-
tem)
6. Radiator fan motor fuse
7. ABS solenoid fuse
8. ABS motor fuse
9. Parking lighting fuse
10.Auxiliary fuse
11.ABS control unit fuse
12.Spare fuse
7
8
9
10
11
1
2
3
4
5
61212
Specified fuses:
Main fuse:
30.0 A
Auxiliary fuse:
2.0 A
Headlight fuse:
15.0 A
Signaling system fuse:
10.0 A
Ignition fuse:
10.0 A
Parking lighting fuse:
7.5 A
Radiator fan motor fuse:
10.0 A
ABS motor fuse:
30.0 A
ABS solenoid fuse:
20.0 A
ABS control unit fuse:
7.5 A
Backup fuse:
7.5 A
Backup fuse 2:
10.0 A
UBU3E1E0.book Page 32 Monday, June 4, 2018 5:20 PM
Page 82 of 98
Periodic maintenance and adjustment
6-35
64. Insert a new bulb into the socket.
5. Install the socket (together with
the bulb) by pushing it in.
6. Install the headlight unit.
EAU24182
Tail/brake lightThis 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.
EAU24205
Replacing a turn signal light
bulb1. Remove the turn signal light lens
by removing the screw.
2. Remove the burnt-out bulb by
pushing it in and turning it coun-
terclockwise.
1. Auxiliary light bulbZAUM1385
1
1. Turn signal light lens
2. Screw
1
2
UBU3E1E0.book Page 35 Monday, June 4, 2018 5:20 PM
Page 83 of 98
Periodic maintenance and adjustment
6-36
6 3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screw. NOTICE: Do not over-
tighten the screw, otherwise the
lens may break.
[ECA11192]EAU24331
License plate lightIf the license plate light does not come
on, have a Yamaha dealer check the
electrical circuit or replace the bulb.
EAU67131
Supporting the motorcycleSince this model is not equipped with a
centerstand, use maintenance stands
when removing the front or rear wheel
or when performing other maintenance
that requires the motorcycle to stand
up right.
Check that the motorcycle is in a stable
and level position before starting any
maintenance.
1. Turn signal light bulb
1
1. Maintenance stand (example)
1
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Page 86 of 98

Periodic maintenance and adjustment
6-39
6Engine overheating
WARNING
EWA10401
Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hiss-
ing sound has stopped, press down on the cap while turning it counterclockwise, and 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.
UBU3E1E0.book Page 39 Monday, June 4, 2018 5:20 PM