wheel YAMAHA FZ8 S 2012 User Guide

PERIODIC MAINTENANCE AND ADJUSTMENT
6-21
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)
U42PE4E0.book Page 21 Wedne sday, August 6, 2014 3:25 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-22
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 roa d
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
U42PE4E0.book Page 22 Wedne sday, August 6, 2014 3:25 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-27
6
EAU22762
Drive chain slackThe drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU22775
To check the drive chain slack
1. Place the motorcycle on the side- stand.TIPWhen checking and adjusting the drive
chain slack, there should be no weight
on the motorcycle.2. Shift the transmission into the neutral position.
3. Measure the drive chain slack as shown. 4. If the drive chain slack is incorrect,
adjust it as follows.
EAU34318
To a djust 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. NOTICE: Improp-
er drive chain slack will over-
loa d the en gine as well as other
vital parts of the motorcycle an d
can lead to chain slippa ge or
b reakag e. To prevent this from
occurrin g, keep the d rive chain
slack within the specified limits.
[ECA10572]
Drive chain slack:
20.0–30.0 mm (0.79–1.18 in)
1. Drive chain slack
1
1. Axle nut
2. Locknut
1
2
U42PE4E0.book Page 27 Wedne sday, August 6, 2014 3:25 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-28
6
TIPUsing 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
Cleanin g an d lu bricatin g the
d rive 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 lu bricated
after washin g the motorcycle, ri din g
in the rain or ri din g in wet areas.1. Clean the drive chain with kero-
sene and a small soft brush.
NOTICE: To prevent d amaging
the O-ring s, do not clean the
d rive chain with steam cleaners,
hi gh-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
en gine oil or any other lu bri-
cants for the drive chain, as they
1. Drive chain slack adjusting bolt
1. Alignment marks
2. Drive chain puller
1
(a)(b)
2
1
Ti ghtenin g torques:
Axle nut: 150 Nm (15 m·kgf, 108 ft·lbf)
Locknut:
16 Nm (1.6 m·kgf, 12 ft·lbf)
U42PE4E0.book Page 28 Wedne sday, August 6, 2014 3:25 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-32
6
NOTICE
ECA10591
If any damage is foun d or the front
fork does not operate smoothly,
have a Yamaha d ealer check or re-
pair it.
EAU23284
Checkin g the steerin gWorn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the
periodic maintenance and lubrication
chart.
1. Place a stand under the engine to raise the front wheel off the
ground. (See page 6-40 for more
information.) WARNING! To
avoi d injury, securely support
the vehicle so there is no dan ger
of it fallin g over.
[EWA10752]
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steer-
ing.
U42PE4E0.book Page 32 Wedne sday, August 6, 2014 3:25 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-33
6
EAU23292
Checking the wheel bearin gsThe front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer
check the wheel bearings.
EAU50211
BatteryThe battery is located under the rider
seat. (See page 3-18.)
This model is equipped with a VRLA
(Valve Regulated Lead Acid) battery.
There is no need to check the electro-
lyte or to add distilled water. However,
the battery lead connections need to
be checked and, if necessary, tight-
ened.
WARNING
EWA10761
 Electrolyte is poisonous an d
d an gerous since it contains sul-
furic aci d, which causes severe b
urns. Avoi d any contact with
skin, eyes or clothin g an d al-
ways shiel d your eyes when
workin g near b atteries. In case
of contact, ad minister the fol-
lowin g FIRST AID.
EXTERNAL: Flush with plenty of water.
INTERNAL: Drink lar ge quan-
tities of water or milk an d im-
me diately call a physician.
EYES: Flush with water for 15 minutes an d seek prompt
me dical attention.
 Batteries pro duce explosive hy-
d ro gen gas. Therefore, keep
sparks, flames, ci garettes, etc.,
away from the battery an d pro-
vi de sufficient ventilation when
char gin g it in an enclose d
space.
 KEEP THIS AND ALL BATTER-
IES OUT OF THE REACH OF
CHILDREN.
To char ge the b attery
Have a Yamaha dealer charge the bat-
tery as soon as possible if it seems to
have discharged. Keep in mind that the
1. Battery
2. Positive battery lead (red)
3. Negative battery lead (black)
1
2
3
U42PE4E0.book Page 33 Wedne sday, August 6, 2014 3:25 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-40
63. Remove the burnt-out bulb by
pulling it out.
4. Insert a new bulb into the socket.
5. Install the socket (together with the bulb) by pushing it in.
6. Install the license plate light unit by installing the screws.
EAU24351
Supportin g the motorcycleSince this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other mainte-
nance requiring the motorcycle to
stand upright. Check that the motorcy-
cle is in a stable and level position be-
fore starting any maintenance. A
strong wooden box can be placed un-
der the engine for added stability.
To service the front wheel
1. Stabilize the rear of the motorcy- cle by using a motorcycle stand
or, if an additional motorcycle
stand is not available, by placing a
jack under the frame in front of the
rear wheel.
2. Raise the front wheel off the ground by using a motorcycle
stand.
To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placing a jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
1. License plate light bulb
2. License plate light bulb socket
1
2
U42PE4E0.book Page 40 Wedne sday, August 6, 2014 3:25 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-41
6
EAU44792
Front wheel (for non-ABS
models)
WARNING
EWA14841
For the ABS mo del, have a Yamaha
d ealer remove an d install the wheel.
EAU56330
To remove the front wheel
WARNING
EWA10822
To avoi d injury, securely support the
vehicle so there is no dan ger of it
fallin g over.1. Loosen the front wheel axle pinch
bolt, then the wheel axle and the
brake caliper bolts. 2. Lift the front wheel off the ground
according to the procedure in the
previous section “Supporting the
motorcycle”.
3. Remove the brake hose holder on each side by removing the bolt
and nut. 4. Remove the brake caliper on each
side by removing the bolts.
NOTICE: Do not apply the b rake
after the b rake calipers have
b een remove d, otherwise the
b rake pad s will be forced shut.
[ECA11052]
1. Front wheel axle pinch bolt
2. Wheel axle
3. Brake caliper bolt
3
2
1
1. Brake hose holder
2. Bolt and nut
1
2
U42PE4E0.book Page 41 Wedne sday, August 6, 2014 3:25 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-42
65. Pull the wheel axle out, and then
remove the wheel.
To install the front wheel 1. Lift the wheel up between the fork legs.
2. Insert the wheel axle.
3. Lower the front wheel so that it is on the ground, and then put the
sidestand down.
4. Install the brake calipers by install- ing the bolts.
TIPMake sure that there is enough space
between the brake pads before install-
ing the brake calipers onto the brake
discs.5. Install the brake hose holders byinstalling the bolt and nut.
6. Tighten the brake caliper bolts and the brake hose holder bolts to the
specified torques.
7. Tighten the wheel axle, and then the wheel axle pinch bolt to the
specified torques.
8. Push down hard on the handlebar several times to check for proper
fork operation.
EAU44802
Rear wheel (for non-ABS
mo dels)
WARNING
EWA14841
For the ABS mo del, have a Yamaha
d ealer remove an d install the wheel.
EAU56701
To remove the rear wheel
WARNING
EWA10822
To avoi d injury, securely support the
vehicle so there is no dan ger of it
fallin g over.1. Loosen the axle nut.
1. Brake caliper bolt
2. Brake caliper1
2
Ti ghtenin g torques:
Brake caliper bolt: 40 Nm (4.0 m·kgf, 29 ft·lbf)
Brake hose holder bolt:
6 Nm (0.6 m·kgf, 4.3 ft·lbf)
Ti ghtenin g torques:
Wheel axle: 65 Nm (6.5 m·kgf, 47 ft·lbf)
Front wheel axle pinch bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
1. Axle nut
1
U42PE4E0.book Page 42 Wedne sday, August 6, 2014 3:25 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-43
6
2. Lift the rear wheel off the ground
according to the procedure on
page 6-40.
3. Remove the axle nut.
4. Fully loosen the locknut on each side of the swingarm.
5. Turn the drive chain slack adjust- ing bolts fully in direction (a) and
push the wheel forward.
6. Remove the drive chain from the rear sprocket.
TIPIf the drive chain is difficult to re-
move, remove the wheel axle first,
and then lift the wheel upward
enough to remove the drive chain
from the rear sprocket.
 The drive chain cannot be disas-
sembled.7. While supporting the brake caliper
bracket, pull the wheel axle out,
and then remove the wheel.
NOTICE: Do not apply the b rake
after the wheel an d b rake disc
have been removed , otherwise
the brake pad s will be forced
shut.
[ECA11073]
To install the rear wheel 1. Install the wheel and the brake cal- iper bracket by inserting the wheel
axle from the left-hand side.TIPMake sure that the slot in the
brake caliper bracket is fit over the
retainer on the swingarm.
 Make sure that there is enough
space between the brake pads
before installing the wheel.2. Install the drive chain onto the rear
sprocket.
3. Install the axle nut.
1. Drive chain slack adjusting bolt
2. Locknut
2
(a)
1
1. Wheel axle
1. Slot
2. Retainer
1
2
U42PE4E0.book Page 43 Wedne sday, August 6, 2014 3:25 PM