2018 YAMAHA FJR1300AS spark plugs

Table of contents
Safety information ............................1-1
Description ........................................2-1
Left view ..........................................2-1
Right view........................................2-2
Controls and instruments ................2-3
Instrument an d control functions ....3-1
Immobilizer system .........................3-1
Main switch/steering lock ...............3-2
Indicator lights and warning lights ............................................3-4
Cruise control system .....................3-7
Multi-function meter unit ...............3-10
D-mode (drive mode) ....................3-23
Handlebar switches.......................3-23
YCC-S system...............................3-25
Shift pedal .....................................3-26
Hand shift lever .............................3-27
Brake lever ....................................3-27
Brake pedal ...................................3-28
ABS ...............................................3-28
Traction control system.................3-29
Fuel tank cap.................................3-31
Fuel................................................3-31
Fuel tank overflow hose ................3-33
Catalytic converters .....................3-33
Seats .............................................3-34
Adjusting the rider seat height ......3-35
Storage compartment ...................3-37
Accessory box...............................3-38
Adjusting the headlight beams......3-39
Handlebar position ........................3-40
Opening and closing the cowling vents ..........................................3-40
Rear view mirrors ..........................3-42
Adjusting the front and rear suspension.................................3-42
Sidestand ......................................3-47
Ignition circuit cut-off system........3-47
Auxiliary DC jack ..........................3-49
Cornering lights .............................3-50 For your safety – pre-operation
checks
............................................... 4-1
Operation an d important ri din g
points ................................................. 5-1
Starting the engine.......................... 5-2
Shifting ............................................ 5-3
Tips for reducing fuel consumption................................ 5-4
Engine break-in ............................... 5-5
Parking ............................................ 5-6
Perio dic maintenance an d
a d justment ........................................ 6-1
Owner’s tool kit ............................... 6-2
Periodic maintenance chart for the emission control system.............. 6-3
General maintenance and lubrication chart........................... 6-4
Removing and installing panels ...... 6-7
Checking the spark plugs ............. 6-10
Canister......................................... 6-11
Engine oil and oil filter cartridge ... 6-11
Final gear oil.................................. 6-14
Coolant ......................................... 6-16
Air filter element ............................ 6-17
Checking the engine idling
speed......................................... 6-18
Checking the throttle grip free
play ............................................ 6-18
Valve clearance ............................. 6-19
Tires .............................................. 6-19
Cast wheels .................................. 6-22
YCC-S clutch ................................ 6-22
Checking the brake lever free play ............................................ 6-23
Brake light switches ...................... 6-23
Checking the front and rear brake pads........................................... 6-24
Checking the brake and YCC-S clutch fluid levels ....................... 6-25
Changing the brake and YCC-S clutch fluids ............................... 6-26
Checking and lubricating the cables ........................................ 6-27
UB95E1E0.book Page 1 Tuesday, September 26, 2017 12:01 PM

Periodic maintenance an d a djustment
6-10
6
EAU19653
Checkin g the spark plu gs
The spark plugs are important engine
components, which should be
checked periodically, preferably by a
Yamaha dealer. Since heat and depos- its will cause any spark plug to slowly
erode, they should be removed and
checked in accordance with the peri-
odic maintenance and lubrication
chart. In addition, the condition of the
spark plugs can reveal the condition of
the engine.
The porcelain insulator around the
center electrode of each spark plug
should be a medium-to-light tan (the
ideal color when the vehicle is ridden
normally), and all spark plugs installed
in the engine should have the same
color. If any spark plug shows a dis-
tinctly different color, the engine could
be operating improperly. Do not at-
tempt to diagnose such problems
yourself. Instead, have a Yamaha deal-
er check the vehicle.
If a spark plug shows signs of elec-
trode erosion and excessive carbon or
other deposits, it should be replaced.
Before installing a spark plug, the
spark plug gap should be measured
with a wire thickness gauge and, if
necessary, adjusted to specification. Clean the surface of the spark plug
gasket and its mating surface, and
then wipe off any grime from the spark
plug threads.
TIP
If a torque wrench is not available
when installing a spark plug, a good
estimate of the correct torque is 1/4–
1/2 turn past finger tight. However, the
spark plug should be tightened to the
specified torque as soon as possible.
NOTICE
ECA10841
Do not use any tools to remove or in-
stall the spark plu
g cap, otherwise
the i gnition coil coupler may get
d amag ed . The spark plu g cap may
b e difficult to remove because the
ru bber seal on the en d of the cap fits
ti g htly. To remove the spark plu g
cap, simply twist it b ack and forth
while pullin g it out; to install it, twist
it back an d forth while pushin g it in.
Specifie d spark plu g:
NGK/CPR8EA-9
1. Spark plug gap
Spark plu g g ap:
0.8–0.9 mm (0.031–0.035 in)
Ti ghtening torque:
Spark plug: 13 N·m (1.3 kgf·m, 9.6 lb·ft)
UB95E1E0.book Page 10 Tuesday, September 26, 2017 12:01 PM

Periodic maintenance an d a djustment
6-35
6
EAU63470
Trou bleshootin g charts
Startin g pro blems or poor en gine performance
1. FuelThere is enough fuel.
There is no fuel.
Check the battery.
Supply fuel.
The engine turns o ver
quickly.
The engine turns o ver
slo wly.
The engine does not
start.
Check the battery.
Wipe off with a dry
cloth and correct the
spark plug gaps, or
replace the spark
plugs.
Check the battery
lead connections, and
have a Yamaha dealer
charge the battery if
necessary.
2. BatteryThe battery is good.
The engine does not
start.
Check the ignition.
3. IgnitionW etOperate the electric
starter.
Dry
There is compression.
There is no
compression.
The engine does not start.
Ha ve a Yamaha dealer check the v ehicle.
Have a Yamaha dealer check the v ehicle.
The engine does not
start.
Check the
compression.Have a Yamaha
dealer check the
v ehicle.
Remo ve the spark
plugs and check
the electrodes.
Operate the electric
starter.
Operate the electric
starter.
Check the fuel le vel
in the fuel tank.
4. Compression
UB95E1E0.book Page 35 Tuesday, September 26, 2017 12:01 PM

Motorcycle care and stora ge
7-4
7
EAU26244
Stora ge
Short-term
Always store your motorcycle in a cool,
dry place and, if necessary, protect it
against dust with a porous cover. Be
sure the engine and the exhaust sys-
tem are cool before covering the mo-
torcycle.
NOTICE
ECA10811
 Storin g the motorcycle in a
poorly ventilated room or cover-
in g it with a tarp, while it is still
wet, will allow water an d humi d-
ity to seep in an d cause rust.
 To prevent corrosion, avoi d
d amp cellars, sta bles ( because
of the presence of ammonia)
an d areas where stron g chemi-
cals are stored .
Long-term
Before storing your motorcycle for sev-
eral months: 1. Follow all the instructions in the “Care” section of this chapter.
2. 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 pla-
ce the spark plugs on the cylin- der head so that the electrodes
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 outlets with plastic bags to prevent moisture
from entering them.
7. Remove the battery and fully char- ge it. Store it in a cool, dry place
and charge it once a month. Do
not store the battery in an exces-
sively 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.
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10-1
10
Index
A
ABS ...................................................... 3-28
ABS warning light ................................... 3-5
Accessory box...................................... 3-38
Air filter element ................................... 6-17
Auxiliary DC jack .................................. 3-49
B
Battery .................................................. 6-31
Brake and shift pedals, checking and
lubricating .......................................... 6-28
Brake and YCC-S clutch fluid levels, checking............................................. 6-25
Brake and YCC-S clutch fluids, changing ............................................ 6-26
Brake lever ........................................... 3-27
Brake lever, checking and lubricating .......................................... 6-28
Brake lever free play, checking ............ 6-23
Brake light switches ............................. 6-23
Brake pedal .......................................... 3-28
C
Cables, checking and lubricating ......... 6-27
Canister ................................................ 6-11
Care ........................................................ 7-1
Catalytic converters ............................. 3-33
Centerstand and sidestand, checking and lubricating ................................... 6-29
Coolant ................................................. 6-16
Cornering lights .................................... 3-50
Cowling vents, opening and closing .... 3-40
Cruise control indicator lights ................ 3-4
Cruise control switches ........................ 3-24
Cruise control system ............................ 3-7
D
Diagnostic connector ............................. 9-2
Dimmer/Pass switch ............................ 3-23
D-mode (drive mode) ........................... 3-23
E
Engine break-in ...................................... 5-5
Engine idling speed, checking ............. 6-18
Engine oil and oil filter cartridge ........... 6-11
Engine serial number.............................. 9-1
Engine trouble warning light................... 3-4
F
Final gear oil ......................................... 6-14
Front and rear brake pads, checking ... 6-24
Front fork, checking ............................. 6-29
Fuel....................................................... 3-31
Fuel consumption, tips for reducing ...... 5-4
Fuel tank cap........................................ 3-31 Fuel tank overflow hose ........................ 3-33
Fuses, replacing.................................... 6-32
H
Handlebar position, adjusting ............... 3-40
Handlebar switches .............................. 3-23
Hand shift lever ..................................... 3-27
Hazard switch ....................................... 3-24
Headlight beams, adjusting .................. 3-39
High beam indicator light........................ 3-4
Horn switch........................................... 3-24
I
Identification numbers ............................ 9-1
Ignition circuit cut-off system ............... 3-47
Immobilizer system ................................. 3-1
Immobilizer system indicator light .......... 3-6
Indicator lights and warning lights .......... 3-4
M
Main switch/steering lock ....................... 3-2
Maintenance and lubrication, periodic ... 6-4
Maintenance, emission control
system .................................................. 6-3
Matte color, caution ................................ 7-1
Menu switch ......................................... 3-24
Model label ............................................. 9-1
Multi-function meter unit ...................... 3-10
N
Neutral indicator light.............................. 3-4
O
Oil level warning light .............................. 3-4
P
Panels, removing and installing .............. 6-7
Parking .................................................... 5-6
Part locations .......................................... 2-1
R
Rear view mirrors .................................. 3-42
Rider seat height, adjusting .................. 3-35
S
Safety information................................... 1-1
Seats ..................................................... 3-34
Select switch ........................................ 3-24
Shift down indicator light ........................ 3-5
Shifting .................................................... 5-3
Shift pedal............................................. 3-26
Sidestand .............................................. 3-47
Spark plugs, checking .......................... 6-10
Specifications ......................................... 8-1
Starting the engine.................................. 5-2
Steering, checking ................................ 6-30
Stop mode indicator light ....................... 3-6
Stop mode switch ................................. 3-24
UB95E1E0.book Page 1 Tuesday, September 26, 2017 12:01 PM