
Periodic maintenance and adjustment6-23
1
2
3
4
567
8
9
10
11
12
EAU22762
Drive chain slackThe drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU2277G
To check the drive chain slack 1. Place the motorcycle on the sides- tand.TIPWhen checking and adjusting the drive
chain slack, there should be no weighton the motorcycle.
2. Shift the transmission into the neu- tral position.
3. Measure the drive chain slack as shown. 4. If the drive chain slack is incorrect,
adjust it as follows. NOTICE: Im-
proper drive chain slack will
overload the engine as well as
other vital parts of the motorcy-
cle and can lead to chain slip-
page or breakage. If the drive
chain slack is more than 25.0
mm (0.98 in), the chain can dam-
age the frame, swingarm, and
other parts. To prevent this from
occurring, keep the drive chain
slack within the specified lim-
its.
[ECA17791] EAU57971
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 direc-
tion (a). To loosen the drive chain,
turn the adjusting bolt on each side
of the swingarm in direction (b),
and then push the rear wheel for-
ward.
1. Drive chain slackDrive chain slack:5.0–15.0 mm (0.20–0.59 in)
1
1. Axle nut
2. Locknut
2
1
B90-9-E1.book 23 ページ 2017年2月15日 水曜日 午後1時59分

Periodic maintenance and adjustment
6-24
1
2
3
4
56
7
8
9
10
11
12
TIPUsing the alignment marks and notch
on each side of the swingarm, make
sure that both drive chain pullers are in
the same position for proper wheelalignment. 3. Tighten the axle nut, then the lock-
nuts to their specified torques.
4. Make sure that the drive chain pull- ers 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, ridingin 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
1. Drive chain slack adjusting bolt
(a)(b)
1
1. Notch
2. Alignment marks
3. Drive chain pullerTightening torques: Axle nut:150 N·m (15 kgf·m, 108 lb·ft)
Locknut:
16 N·m (1.6 kgf·m, 12 lb·ft)
3
12
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Periodic maintenance and adjustment6-35
1
2
3
4
567
8
9
10
11
12
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.
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 counter-
clockwise.
1. Auxiliary light bulb
1
1. Turn signal light lens
2. Screw
1
2
B90-9-E1.book 35 ページ 2017年2月15日 水曜日 午後1時59分

Periodic maintenance and adjustment
6-36
1
2
3
4
56
7
8
9
10
11
12 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
B90-9-E1.book 36 ページ 2017年2月15日 水曜日 午後1時59分

Periodic maintenance and adjustment6-39
1
2
3
4
567
8
9
10
11
12
Engine 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 hissingsound 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 coolantas 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.
B90-9-E1.book 39 ページ 2017年2月15日 水曜日 午後1時59分

10-1
1
2
3
4
5
6
7
8
91011
12
Index
AABS ...................................................... 3-17
ABS warning light ................................... 3-5
Air filter element.................................... 6-15
Auxiliary DC connector ......................... 3-30
Auxiliary light bulb, replacing ................ 6-34BBattery .................................................. 6-29
Brake and clutch levers, checking and lubricating .................................... 6-26
Brake and shift pedals, checking and lubricating .................................... 6-26
Brake fluid, changing ............................ 6-22
Brake fluid level, checking .................... 6-21
Brake lever ........................................... 3-16
Brake lever free play, checking ............ 6-19
Brake light switches .............................. 6-20
Brake pedal .......................................... 3-17
Brake/tail light ....................................... 6-35CCables, checking and lubricating .......... 6-25
Canister ................................................ 6-10
Care ........................................................ 7-1
Catalytic converter ................................ 3-22
Clutch lever........................................... 3-16
Clutch lever free play, adjusting ........... 6-19
Coolant ................................................. 6-13
Coolant temperature warning light.......... 3-4DData recording, vehicle ........................... 9-2
Diagnostic connecto r .............................. 9-2
Dimmer switch ...................................... 3-14
D-mode (drive mode)............................ 3-13
Drive chain, cleaning and lubricating .... 6-24Drive chain slack ................................... 6-23
EEngine break-in ....................................... 5-3
Engine idling speed,
checking............... 6-15
Engine oil and oil filter cartridge ............ 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............................... 6-28
Fuel ....................................................... 3-20
Fuel consumption, tips for reducing ........5-3
Fuel tank breather hose and
overflow hose ...................................... 3-22
Fuel tank cap......................................... 3-20
Fuses, replacing .................................... 6-30HHandlebar switches ............................... 3-14
Hazard switch........................................ 3-15
Headlight bulb, replacing....................... 6-33
High beam indicator light .........................3-4
Horn switch ........................................... 3-15IIdentification 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 ................................. 6-36
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 .... 3-26
Sidestand .............................................. 3-28
Sidestand, checking and lubricating ..... 6-27
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 ........................... 3-24
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
B90-9-E1.book 1 ページ 2017年2月15日 水曜日 午後1時59分