2014 YAMAHA FZ8 N Owners Manual

PERIODIC MAINTENANCE AND ADJUSTMENT
6-15
6
not tilt or pull the fuel tank too
much, otherwise the fuel hoses
may come loose, which could
cause fuel leaka
ge an d a fire
hazar d.
[EWA10412]
6. Remove the air filter case cover by
removing the screws. NOTICE:
When removing the air filter
case cover, be careful not to al-
low forei gn o bjects to drop into
the air intake manifold .
[ECA12882]
7. Pull the air filter element out. 8. Insert a new air filter element into
the air filter case. NOTICE: Make
sure that the air filter element is
properly seated in the air filter
case. The en gine shoul d never
b e operated without the air filter
element installed , otherwise the
piston(s) an d/or cylin der(s) may
b ecome excessively worn.
[ECA10482]
9. Install the air filter case cover by
installing the screws.
10. Place the fuel tank in the original position. Make sure that the fuel
hoses are properly connected and
routed, and not pinched. Be sure
to place the fuel tank breather
hose and the fuel tank overflow
hose in the original position.
WARNING! Before placin g the
fuel tank in the ori ginal position,
make sure that the fuel hoses
are not damag ed . If any fuel
hose is damag ed , do not start
the en gine but have a Yamaha
d ealer replace the hose, other-
wise fuel may leak, creatin g a
fire hazar d.
[EWA11362]
1. Air filter case
2. Fuel tank
1. Fuel tank hose
1
2
1
1. Screw
1. Air filter element
2. Air intake manifold
1
1
1
2
2
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-16
611. Install the fuel tank bolt on bothsides.
12. Place the fuel tank cowling in the original position. 13. Install the cowling bolts on both
sides.
14. Install the rider seat.
EAU34302
A djustin g the en gine i dlin g
spee dThe engine idling speed must be
checked and, if necessary, adjusted as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.
The engine should be warm before
making this adjustment.
Check the engine idling speed and, if
necessary, adjust it to specification by
turning the idle adjusting screw. To in-
crease the engine idling speed, turn
the screw in direction (a). To decrease
the engine idling speed, turn the screw
in direction (b).
1. Fuel tank overflow hose
2. Original position (paint mark)
3. Clamp
4. Fuel tank breather hose
12
43
1. Idle adjusting screw
(b)
(a)
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-17
6
TIPIf the specified idling speed cannot be
obtained as described above, have a
Yamaha dealer make the adjustment.
EAU21385
Checkin g the throttle grip free
playThe throttle grip free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
inner edge of the throttle grip. Periodi-
cally check the throttle grip free play
and, if necessary, have a Yamaha deal-
er 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.
En gine i dlin g spee d:
1100–1300 r/min
1. Throttle grip free play
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-18
6
EAU2177A
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
EWA10504
Operation of this vehicle with im-
proper tire pressure may cause se-
vere injury or death from loss of
control.  The tire air pressure must be
checked and a djuste d on col d
tires (i.e., when the temperature
of the tires equals the am bient
temperature).
 The tire air pressure must be
a d juste d in accor dance with the
ri din g speed and with the total wei
ght of ri der, passen ger, car-
g o, an d accessories approve d
for this mo del.
WARNING
EWA10512
Never overloa d your vehicle. Opera-
tion of an overloa ded vehicle coul d
cause an acci dent.
Tire inspection
The tires must 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 side-
wall is cracked, have a Yamaha dealer
replace the tire immediately.TIPThe tire tread depth limits may differ
from country to country. Always com-
ply with the local regulations.
Tire air pressure (measure d on col d
tires): Up to 90 k g (198 l b) loa d:
Front:
250 kPa (2.50 kgf/cm², 36 psi)
Rear: 290 kPa (2.90 kgf/cm², 42 psi)
90 k g (198 l b) to maximum load :
Front: 250 kPa (2.50 kgf/cm², 36 psi)
Rear: 290 kPa (2.90 kgf/cm², 42 psi)
Hi gh-spee d ri din g:
Front: 250 kPa (2.50 kgf/cm², 36 psi)
Rear:
290 kPa (2.90 kgf/cm², 42 psi)
Maximum loa d*:
FZ8-N 199 kg (439 lb)
FZ8-NA 194 kg (428 lb)
* Total weight of rider, passenger, car- go and accessories
1. Tire sidewall
2. Tire tread depthMinimum tire trea d d epth (front an d
rear): 1.6 mm (0.06 in)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-19
6
WARNING
EWA10472
Have a Yamaha d ealer replace
excessively worn tires. Besid es
b ein g ille gal, operatin g the vehi-
cle with excessively worn tires
d ecreases ri din g sta bility an d
can lead to loss of control.
 The replacement of all wheel
and b rake-relate d parts, inclu d-
in g the tires, shoul d b e left to a
Yamaha dealer, who has the
necessary professional knowl-
e dge an d experience to do so.
 Ride at mo derate spee ds after
chan gin g a tire since the tire
surface must first be “ broken
in” for it to develop its optimal
characteristics.
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 shall be
checked by tire specialists to ascertain
their suitability for further use.
WARNING
EWA10482
 The front an d rear tires shoul d
b e of the same make an d d e-
si gn, otherwise the han dlin g characteristics of the motorcy-
cle may b
e different, which
coul d lea d to an acci dent.
 Always make sure that the valve
caps are securely installe d to
prevent air pressure leaka ge.
 Use only the tire valves an d
valve cores liste d below to
avoi d tire deflation durin g a
hi gh-spee d ri de.
After extensive tests, only the tires list-
ed below have been approved for this
model by Yamaha.
1. Tire air valve
2. Tire air valve core
3. Tire air valve cap with seal
Front tire:
Size: 120/70 ZR17M/C (58W)
Manufacturer/model: BRIDGESTONE/BT021F BB
Rear tire:
Size: 180/55 ZR17M/C (73W)
Manufacturer/model:
BRIDGESTONE/BT021R BB
FRONT and REAR:
Tire air valve:
TR412
Valve core: #9100 (original)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-20
6
WARNING
EWA10601
This motorcycle is fitted with super-
hi gh-spee d tires. Note the following
points in or der to make the most ef-
ficient use of these tires.  Use only the specifie d replace-
ment tires. Other tires may run
the dan ger of bursting at super
hi gh spee ds.
 Bran d-new tires can have a rel-
atively poor g rip on certain road
surfaces until they have been
“ b roken in”. Therefore, it is a d-
visa ble before doin g any hi gh-
speed ridin g to ri de conserva-
tively for approximately 100 km
(60 mi) after installin g a new tire.
 The tires must b e warmed up
b efore a hi gh-spee d run.
 Always a djust the tire air pres-
sure accor din g to the operating
con ditions.
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.
EAU22082
Adjustin g the clutch lever free
playThe clutch lever free play should mea-
sure 7.0–12.0 mm (0.28–0.47 in) as
shown. Periodically check the clutch
lever free play and, if necessary, adjust
it as follows.
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 direction (b).1. Clutch lever free play adjusting bolt
2. Clutch lever free play
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-21
6
TIPIf the specified free play cannot be ob-
tained as described above or if the
clutch does not operate correctly, have
a Yamaha dealer check the internal
clutch mechanism.
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 spon gy feelin g in the b rake
lever can in dicate the presence of
air in the hy draulic system. If there is
air in the hy draulic system, have a
Yamaha dealer blee d the system be-
fore operatin g the vehicle. Air in the
hy draulic system will diminish the b
rakin g performance, which may re-
sult in loss of control an d an acci-
d ent.1. No brake lever free play
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-22
6
EAU57070
Brake light switchesFor non-ABS mo dels
The brake light, which is activated by
the brake pedal and brake lever,
should come on just before braking
takes effect. If necessary, adjust the
rear brake light switch as follows, but
the front brake light switch should be
adjusted by a Yamaha dealer.
Turn the rear brake light switch adjust-
ing nut while holding the rear brake
light switch in place. To make the
brake light come on earlier, turn the ad- justing nut in direction (a). To make the
brake light come on later, turn the ad-
justing nut in direction (b).
For ABS mo
dels
The brake light, which is activated by
the brake pedal and brake lever,
should come on just before braking
takes effect. If necessary, have a
Yamaha dealer adjust the brake light switches.
EAU22393
Checkin g the front an d rear
b rake pa dsThe 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 pa ds
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
1. Rear brake light switch
2. Rear brake light switch adjusting nut
1
2(b)
(a)
1. Brake pad wear indicator
1
1
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