check engine YAMAHA FZ8 N 2015 Owner's Manual

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
U2SHE1E0.book Page 16 Tuesday, July 15, 2014 4:04 PM

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
U2SHE1E0.book Page 17 Tuesday, July 15, 2014 4:04 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-30
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 6-39 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.
U2SHE1E0.book Page 30 Tuesday, July 15, 2014 4:04 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-39
6
EAU24314
Replacing 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. 3. 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
1. Screw
2. License plate light unit
1. License plate light bulb
2. License plate light bulb socket
1
2
U2SHE1E0.book Page 39 Tuesday, July 15, 2014 4:04 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-45
6
EAU42365
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.
U2SHE1E0.book Page 45 Tuesday, July 15, 2014 4:04 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-46
6En
gine overheatin g
WARNING
EWA10401
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.
 After removin g the ra diator cap retainin g b olt, place a thick ra g, like a towel, over the rad iator cap, and then
slowly rotate the cap counterclockwise to the d etent to allow any residual pressure to escape. When the hiss-
in 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.
U2SHE1E0.book Page 46 Tuesday, July 15, 2014 4:04 PM

MOTORCYCLE CARE AND STORAGE
7-4
72. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
3. Perform the following steps to protect the cylinders, piston rings,
etc. from corrosion.a. Remove the spark plug caps and spark plugs.
b. Pour a teaspoonful of engine oil into each spark plug bore.
c. Install the spark plug caps onto the spark plugs, and then
place the spark plugs on the
cylinder head so that the elec-
trodes are grounded. (This will
limit sparking during the next
step.)
d. Turn the engine over several times with the starter. (This will
coat the cylinder walls with oil.)
WARNING! To prevent d am-
a g e or injury from sparkin g,
make sure to groun d the
spark plu g electro des while
turnin g the en gine over.
[EWA10952]
e. Remove the spark plug caps
from the spark plugs, and then
install the spark plugs and the
spark plug caps.
4. Lubricate all control cables and the pivoting points of all levers and
pedals as well as of the side-
stand/centerstand.
5. Check and, if necessary, correct the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
6. Cover the muffler outlet with a plastic bag to prevent moisture
from entering it.
7. Remove the battery and fully charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively cold or warm place [less
than 0 °C (30 °F) or more than 30
°C (90 °F)]. For more information
on storing the battery, see page
6-31.
TIPMake any necessary repairs before
storing the motorcycle.
U2SHE1E0.book Page 4 Tuesday, July 15, 2014 4:04 PM

10-1
10
INDEXAABS (for ABS models) ........................... 3-14
ABS warning light (for ABS models) ....... 3-7
Air filter element, replacing ................... 6-14
Auxiliary light bulb, replacing ................ 6-37BBattery .................................................. 6-31
Brake and clutch levers, checking and lubricating ........................................... 6-28
Brake and shift pedals, checking and lubricating ........................................... 6-28
Brake fluid, changing ............................ 6-24
Brake fluid level, checking .................... 6-23
Brake lever ............................................ 3-13
Brake lever free play, checking............. 6-21
Brake light switches.............................. 6-22
Brake pedal........................................... 3-14CCables, checking and lubricating ......... 6-27
Care ........................................................ 7-1
Catalytic converter ................................ 3-17
Clutch lever ........................................... 3-13
Clutch lever free play, adjusting ........... 6-20
Coolant ................................................. 6-13
Coolant temperature warning light ......... 3-4
Cowling and panel, removing and
installing................................................ 6-8DDimmer switch ...................................... 3-12
Drive chain, cleaning and lubricating .... 6-26
Drive chain slack................................... 6-25EEngine break-in....................................... 5-3
Engine idling speed .............................. 6-16 Engine oil and oil filter
cartridge ........... 6-10
Engine serial number .............................. 9-1
Engine stop switch ............................... 3-12
Engine trouble warning light ................... 3-7
FFront and rear brake pads, checking ... 6-22
Front fork, adjusting ............................. 3-20
Front fork, checking ............................. 6-29
Fuel ....................................................... 3-16
Fuel consumption, tips for reducing ...... 5-3
Fuel tank breather hose and overflow hose ................................................... 3-17
Fuel tank cap ........................................ 3-15
Fuses, replacing ................................... 6-32HHandlebar switches .............................. 3-11
Hazard switch....................................... 3-12
Headlight bulb, replacing ..................... 6-35
High beam indicator light ....................... 3-4
Horn switch .......................................... 3-12IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ............... 3-25
Immobilizer system ................................ 3-1
Immobilizer system indicator light .......... 3-7
Indicator lights and warning lights ......... 3-4LLicense plate light bulb, replacing........ 6-39
Luggage strap holders ......................... 3-24MMain switch/steering lock....................... 3-2
Maintenance and lubrication, periodic ... 6-4
Maintenance, emission control
system.................................................. 6-3 Matte color, caution ................................7-1
Model label .............................................9-1
Multi-function meter unit .........................3-8
NNeutral indicator light ..............................3-4OOil level warning light ..............................3-4PParking ....................................................5-4
Part locations ..........................................2-1
Pass switch ...........................................3-12SSafety information ...................................1-1
Seats .....................................................3-18
Shifting ....................................................5-2
Shift pedal .............................................3-13
Shock absorber assembly, adjusting ....3-22
Sidestand ..............................................3-24
Sidestand, checking and lubricating.....6-29
Spark plugs, checking ............................6-9
Specifications .........................................8-1
Starting the engine ..................................5-1
Start switch ...........................................3-12
Steering, checking ................................6-30
Storage ...................................................7-3
Storage compartment ...........................3-19
Supporting the motorcycle ...................6-39TTail/brake light bulb, replacing..............6-38
Throttle grip and cable, checking and
lubricating ...........................................6-27
Throttle grip free play, checking ...........6-17
Tires ......................................................6-18
Tool kit ....................................................6-2
U2SHE1E0.book Page 1 Tuesday, July 15, 2014 4:04 PM