2012 YAMAHA FZ8 S Owners Manual

PERIODIC MAINTENANCE AND ADJUSTMENT
6-39
6
EAU24205
Replacing a turn sig nal light
b ul b1. 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-
ti g hten the screw, otherwise the
lens may break.
[ECA11192] EAU24314
Replacin
g the license plate
lig ht bul b1. Remove the license plate light unit
by removing the screws.
2. Remove the license plate light bulb socket (together with the
bulb) by pulling it out.
1. Turn signal light lens
2. Screw
1
2
1. Turn signal light bulb
1
1. Screw
2. License plate light unit
U42PE4E0.book Page 39 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

PERIODIC MAINTENANCE AND ADJUSTMENT
6-44
64. Lower the rear wheel so that it is
on the ground, and then put the
sidestand down.
5. Adjust the drive chain slack. (See page 6-27.)
6. Tighten the axle nut, and then tighten the locknuts to the speci-
fied torques.
EAU25872
Trou bleshootin gAlthough Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur
during operation. Any problem in the
fuel, compression, or ignition systems,
for example, can cause poor starting
and loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWA15142
When checkin g the fuel system, do
not smoke, an d make sure there are
no open flames or sparks in the ar-
ea, inclu din g pilot lig hts from water heaters or furnaces. Gasoline or
g
asoline vapors can i gnite or ex-
plod e, causin g severe injury or prop-
erty damag e.
Tightenin 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 44 Wedne sday, August 6, 2014 3:25 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-45
6
EAU42505
Troubleshootin g chartsStartin g prob lems or poor en gine performance
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the battery.
Supply fuel.
The engine does not start.
Check the battery.
Remove the spark plugs
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gaps, or replace the spark plugs.
Have a Yamaha dealer check the vehicle.
Operate the electric starter.4. Compression
There is compression.
There is no compression.
The engine does not start.
Have a Yamaha dealer check the vehicle.Have a Yamaha dealer check the vehicle.
The engine does not start.
Check the compression.
Operate the electric starter.2. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The engine does not start.
Check the ignition.
The battery is good.Check the battery lead connections,
and have a Yamaha dealer charge
the battery if necessary.
DryWet
Operate the electric starter.
U42PE4E0.book Page 45 Wedne sday, August 6, 2014 3:25 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-46
6En
gine overheatin g
WARNING
EWAT1041
Do not remove the ra diator cap when the en gine an d ra diator are hot. Scal din g hot flui d an d steam may be
b lown out un der pressure, which coul d cause serious injury. Be sure to wait until the en gine has coole d.
 Place a thick ra g, like a towel, over the ra diator cap, an d then slowly rotate the cap counterclockwise to the
d etent to allow any resi dual pressure to escape. When the hissin g soun d has stoppe d, press d own on the cap
while turnin g it counterclockwise, an d then remove the cap.TIPIf coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool-
ant as 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.
U42PE4E0.book Page 46 Wedne sday, August 6, 2014 3:25 PM