Page 68 of 102
Periodic maintenance and adjustment
6-20
64. Tighten the locknut.
EAU37914
Checking the brake lever free
play
There 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 spongy feeling in the brake
lever can indicate the presence of
air in the hydraulic system. If there is
air in the hydraulic system, have a
Yamaha dealer bleed the system be-
fore operating the vehicle. Air in the
hydraulic system will diminish the
braking performance, which may re-
sult in loss of control and an acci-
dent.
1. Locknut
2. Clutch lever free play adjusting nut
12
(a)
(b)
1. No brake lever free play
1
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Page 71 of 102

Periodic maintenance and adjustment
6-23
6 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, and 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
fluid level goes down suddenly, have a
Yamaha dealer check the cause before
further riding.
EAU22733
Changing the brake fluid
Have 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.
UBC6E2E0.book Page 23 Tuesday, July 10, 2018 6:26 PM
Page 72 of 102

Periodic maintenance and adjustment
6-24
6
EAU22762
Drive chain slack
The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU60046To check the drive chain slack
1. Place the motorcycle on the side-
stand.
TIP
When checking and adjusting the drive
chain slack, there should be no weight
on the motorcycle.
2. Shift the transmission into the
neutral position.
3. Push down on the drive chain un-
der the end of the drive chain
guard.
4. Measure distance A between the
drive chain guard and the center
of the chain as shown.
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 canlead 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]
EAU74260
To adjust the drive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack.
1. Loosen the axle nut and the lock-
nut on each side of the swingarm.
2. 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.
1. Drive chain guide
2. Distance A
Distance A:
30.0–35.0 mm (1.18–1.38 in)
2
11. Locknut
2. Axle nut
ZAUM1426
12
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Page 73 of 102

Periodic maintenance and adjustment
6-25
6
TIP
Using 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.
EAU23026
Cleaning and lubricating the
drive chain
The 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 they
may contain substances that
could damage the O-rings.
[ECA11112]
1. Drive chain slack adjusting bolt
1. Drive chain puller
2. Notch
3. Alignment marks
Tightening torques:
Axle nut:
150 N·m (15 kgf·m, 108 lb·ft)
Locknut:
16 N·m (1.6 kgf·m, 12 lb·ft)
ZAUM1427
(a)
(b)1
1
3
2
2
ZAUM1428
UBC6E2E0.book Page 25 Tuesday, July 10, 2018 6:26 PM
Page 81 of 102

Periodic maintenance and adjustment
6-33
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 amperage
rating than recommended to
avoid causing extensive dam-
age to the electrical system and
possibly 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. Ignition fuse
2. Signaling system fuse
3. Headlight fuse
4. Fuel injection system fuse
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.Accessory fuse
11.Auxiliary fuse
12.ABS control unit fuse
13.Spare fuse
14.Fuse tongs
M1430
789
11
12123456
13
1310
14
Specified fuses:
Main fuse:
30.0 A
Accessory fuse:
10.0 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
Fuel injection system fuse:
10.0 A
Backup fuse:
7.5 A
ABS motor fuse:
30.0 A
ABS control unit fuse:
7.5 A
ABS solenoid fuse:
20.0 A
UBC6E2E0.book Page 33 Tuesday, July 10, 2018 6:26 PM
Page 82 of 102

Periodic maintenance and adjustment
6-34
6
EAUM3820
Replacing a headlight bulb
This model is equipped with halogen
bulb headlights. If a 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 a
wattage higher 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.
6. Install the headlight bulb cover by
turning it clockwise.
TIP
When installing the headlight bulb
covers, be sure to position the
widest locking tab to the top.
Make sure that the O-ring is prop-
erly seated.
1. Do not touch the glass part of the bulb.
1. Headlight bulb cover
1. Headlight bulb holder
2. Headlight coupler
1
ZAUM1419
2
1
ZAUM1420
UBC6E2E0.book Page 34 Tuesday, July 10, 2018 6:26 PM
Page 84 of 102
Periodic maintenance and adjustment
6-36
6
EAU70540
Brake/tail light
This 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.
EAU24205
Replacing a turn signal light
bulb
1. 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.
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]
1. Turn signal light lens
2. Screw
1. Turn signal light bulb
1
2
1
UBC6E2E0.book Page 36 Tuesday, July 10, 2018 6:26 PM
Page 88 of 102

Periodic maintenance and adjustment
6-40
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 counter-
clockwise to the detent to allow any residual pressure to escape. When
the hissing sound has stopped, press down on the cap while turning it
counterclockwise, and then remove the cap.
TIP
If coolant is not available, tap water can be temporarily used instead, provided
that it is changed to the recommended coolant as soon as possible.
Wait until the engine
has cooled.
Check the coolant
level in the reservoir
and radiator.Add coolant.
(See TIP.)
The coolant level is
OK.
There is no leakage.
There is leakage.
The coolant level is
low.
Check the cooling
system for leakage.
Have a Yamaha
dealer check and
repair the cooling
system.
Start the engine. If the engine overheats again,
have a Yamaha dealer check and repair the cooling
system.
UBC6E2E0.book Page 40 Tuesday, July 10, 2018 6:26 PM