Page 94 of 130

Periodic maintenance and adjustment
7-18
1
2
3
4
5
67
8
9
10
11
12 12. Install the coolant reservoir cap.
13. Loosen the air bleed bolt to allow
any trapped air to escape from the
water pump.
14. When coolant begins to flow out, tighten the air bleed bolt to the specified torque.
15. Pour the specified coolant into the radiator until it is full.
16. Install the radiator cap.
17. Start the engine, let it idle for sev-
eral minutes, and then turn it off.
18. Remove the radiator cap to check the coolant level in the radiator. If
necessary, add sufficient coolant
until it reaches the top of the radia-
tor, and then install the radiator
cap.
19. Start the engine, and then check the vehicle for coolant leakage. If
coolant is leaking, have a Yamaha
dealer check the cooling system.
20. Install the cowling and panel.
EAU36765
Air filter elementThe air filter element must be replaced
at the intervals specified in the periodic
maintenance and lubrication chart.
Have a Yamaha dealer replace the air
filter element.
Antifreeze/water mixture ratio: 1:1
Recommended antifreeze: High-quality ethylene glycol anti-
freeze containing corrosion inhibitors
for aluminum engines
Coolant quantity:
Radiator (including all routes):2.25 L (2.38 US qt, 1.98 Imp.qt)
Coolant reservoir (up to the maxi-
mum level mark):
0.25 L (0.26 US qt, 0.22 Imp.qt)1. Air bleed bolt
1
Tightening torque: Air bleed bolt:10 N·m (1.0 kgf·m, 7.2 lb·ft)
BX4-9-E0.book 18 ページ 2016年12月1日 木曜日 午後8時7分
Page 95 of 130
Periodic maintenance and adjustment7-19
1
2
3
4
5
678
9
10
11
12
EAU44735
Checking the engine idling
speedCheck the engine idling speed and, if
necessary, have it corrected by a
Yamaha dealer.
EAU21386
Checking the throttle grip free
playMeasure the throttle grip free play as
shown.
Periodically check the throttle grip free
play and, if necessary, have a Yamaha
dealer adjust it.
EAU21402
Valve clearanceThe valve clearance changes with use,
resulting in improper air-fuel mixture
and/or engine noise. To prevent this
from occurring, the valve clearance
must be adjusted by a Yamaha dealer
at the intervals specified in the periodic
maintenance and lubrication chart.
Engine idling speed: 1200–1400 r/min
1. Throttle grip free playThrottle grip free play:3.0–5.0 mm (0.12–0.20 in)
1
BX4-9-E0.book 19 ページ 2016年12月1日 木曜日 午後8時7分
Page 96 of 130

Periodic maintenance and adjustment
7-20
1
2
3
4
5
67
8
9
10
11
12
EAU70961
TiresTires are the only contact between the
vehicle and the road. Safety in all con-
ditions of riding depends on a relatively
small area of road contact. Therefore, it
is essential to maintain the tires in good
condition at all times and replace them
at the appropriate time with the speci-
fied tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
WARNING
EWA18370
Operation of this vehicle with
improper tire air pressure may
cause severe injury or death
from loss of control.
The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambienttemperature).
WARNING
EWA10512
Never overload your vehicle. Opera-
tion of an overloaded vehicle couldcause an accident.
Tire inspection The tires should be checked before
each ride. If the center tread depth
reaches the specified limit, if the tire
has a nail or glass fragments in it, or if
the sidewall is cracked, have a Yamaha
dealer replace the tire immediately.
TIPThe tire tread depth limits may differ
from country to country. Always complywith the local regulations.
WARNING
EWA10472
Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the vehi-
cle with excessively worn tires
decreases riding stability and
can lead to loss of control.
The replacement of all wheel
and brake-related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the
necessary professional knowl-
edge and experience to do so.
Cold tire air pressure:
Front:250 kPa (2.50 kgf/cm
2, 36 psi)
Rear:
290 kPa (2.90 kgf/cm2, 42 psi)
Maximum load*: 187 kg (412 lb)
* Total weight of rider, passenger, car- go and accessories
1. Tire sidewall
2. Tire tread depth
Minimum tire tread depth (front and
rear): 1.6 mm (0.06 in)
BX4-9-E0.book 20 ページ 2016年12月1日 木曜日 午後8時7分
Page 97 of 130

Periodic maintenance and adjustment7-21
1
2
3
4
5
678
9
10
11
12
Ride at moderate speeds after
changing a tire since the tire
surface must first be “broken
in” for it to develop its optimalcharacteristics.
Tire information
This model is equipped with tubeless
tires and tire air valves.
Tires age, even if they have not been
used or have only been used occasion-
ally. Cracking of the tread and sidewall
rubber, sometimes accompanied by
carcass deformation, is an evidence of
ageing. Old and aged tires should be checked by tire specialists to ascertain
their suitability for further use.
WARNING
EWA10482
The front and rear tires should
be of the same make and de-
sign, otherwise the handling
characteristics of the motorcy-
cle may be different, which
could lead to an accident.
Always make sure that the valve
caps are securely installed to
prevent air pressure leakage.
Use only the tire valves and
valve cores listed below to
avoid tire deflation during ahigh-speed ride.
After extensive tests, only the tires list-
ed below are approved for this model
by Yamaha.
WARNING
EWA10601
This motorcycle is fitted with su-
per-high-speed tires. Note the fol-
lowing points in order to make the
most efficient use of these tires.
Use only the specified replace-
ment tires. Other tires may run
the danger of bursting at super
high speeds.
Brand-new tires can have a rela-
tively poor grip on certain road
1. Tire air valve
2. Tire air valve core
3. Tire air valve cap with seal
Front tire: Size:120/70 ZR17MC (58W)
Manufacturer/model:
BRIDGESTONE/BATTLAX RAC-
ING STREET RS10F
Rear tire:
Size:190/55 ZR17M/C (75W) (YZF-R1)
200/55 ZR17M/C (78W)
(YZF-R1M)
Manufacturer/model: BRIDGESTONE/BATTLAX RAC-
ING STREET RS10R
FRONT and REAR: Tire air valve:
TR412
Valve core: #9100 (original)
BX4-9-E0.book 21 ページ 2016年12月1日 木曜日 午後8時7分
Page 98 of 130

Periodic maintenance and adjustment
7-22
1
2
3
4
5
67
8
9
10
11
12 surfaces until they have been
“broken in”. Therefore, it is ad-
visable before doing any
high-speed riding to ride con-
servatively for approximately
100 km (60 mi) after installing a
new tire.
The tires must be warmed up
before a high-speed run.
Always adjust the tire air pres-
sure according to the operatingconditions.
EAU66460
Cast magnesium wheelsTo maximize the performance, durabil-
ity, and safe operation of your motorcy-
cle, note the following points regarding
these wheels.
The wheel rims should be checked
for cracks, bends, warpage or
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 deformed or cracked
wheel must be replaced.
The wheel should be balanced
whenever the tire or wheel has
been changed or replaced. An un-
balanced wheel can result in poor
performance, adverse handling
characteristics, and shortened tire
life.
These wheels are made of magnesium
and require special care.
When balancing the wheel, use
press-on type weights to avoid
scratching the wheel.
Regularly inspect the wheel for
nicks and scratches. Use touch-up
paint or other sealant to prevent corrosion.
Follow the instructions for cleaning
provided on page 8-1.
BX4-9-E0.book 22 ページ 2016年12月1日 木曜日 午後8時7分
Page 99 of 130

Periodic maintenance and adjustment7-23
1
2
3
4
5
678
9
10
11
12
EAU67342
Adjusting the clutch lever free
playMeasure the clutch lever free play as
shown.
Periodically check the clutch lever free
play and, if necessary, adjust it as fol-
lows.
To increase the clutch lever free play,
turn the clutch lever free play adjusting
bolt at the clutch lever in direction (a).
To decrease the clutch lever free play,
turn the adjusting bolt in direction (b).
TIPIf the specified clutch lever free play
cannot be obtained as describedabove, proceed as follows. 1. Fully turn the adjusting bolt at the clutch lever in direction (a) to loos-
en the clutch cable.
2. Remove cowling B. (See page 7-9.)
3. Loosen the locknut further down the clutch cable.
4. 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 direction
(b). 5. Tighten the locknut.
6. Install the cowling.
1. Clutch lever free play adjusting bolt
2. Clutch lever free playClutch lever free play:
10.0–15.0 mm (0.39–0.59 in)
1
2 (a)
(b)
1. Locknut
2. Clutch lever free play adjusting nut
1
2
(a)(b)
BX4-9-E0.book 23 ページ 2016年12月1日 木曜日 午後8時7分
Page 100 of 130
Periodic maintenance and adjustment
7-24
1
2
3
4
5
67
8
9
10
11
12
EAU37914
Checking 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 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.
EAU36504
Brake light switchesThe brake light, which is activated by
the brake pedal and brake lever, should
come on just before braking takes ef-
fect. If necessary, have a Yamaha deal-
er adjust the brake light switches.
1. No brake lever free play
1
BX4-9-E0.book 24 ページ 2016年12月1日 木曜日 午後8時7分
Page 101 of 130

Periodic maintenance and adjustment7-25
1
2
3
4
5
678
9
10
11
12
EAU22393
Checking the fr ont 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 almost touches the brake disc, have a Yamaha
dealer replace the brake pads as a set.
EAU48071
Rear brake pads
Each rear brake pad is provided with a
wear indicator groove, which allows
you to check the brake pad wear with-
out having to disassemble the brake.
To check the brake pad wear, check
the wear indicator groove. If a brake
pad has worn to the point that the wear
indicator groove almost appears, have
a Yamaha dealer replace the brake
pads as a set.
EAU22582
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 brake
1. Brake pad wear indicator
1
1. Brake pad wear indicator groove
1
1
1. Minimum level mark
1
BX4-9-E0.book 25 ページ 2016年12月1日 木曜日 午後8時7分