2014 YAMAHA XV950 spark plugs

TABLE OF CONTENTSSAFETY INFORMATION.................. 1-1
DESCRIPTION .................................. 2-1
Left view ......................................... 2-1
Right view ....................................... 2-2
Controls and instruments ............... 2-3
INSTRUMENT AND CONTROL
FUNCTIONS ...................................... 3-1
Immobilizer system......................... 3-1
Main switch .................................... 3-2
Indicator lights and warning lights............................................ 3-3
Multi-function meter unit ................ 3-5
Handlebar switches ........................ 3-8
Clutch lever .................................. 3-10
Shift pedal .................................... 3-10
Brake lever.................................... 3-10
Brake pedal .................................. 3-11
ABS (for ABS models) .................. 3-11
Fuel tank cap ................................ 3-12
Fuel ............................................... 3-13
Fuel tank breather/overflow
hose .......................................... 3-14
Catalytic converter ....................... 3-14
Steering lock................................. 3-15
Rider seat ..................................... 3-16
Adjusting the shock absorber assemblies ................................ 3-17
Sidestand ..................................... 3-17
Ignition circuit cut-off system ....... 3-18 FOR YOUR SAFETY –
PRE-OPERATION CHECKS
............. 4-1
OPERATION AND IMPORTANT
RIDING POINTS ................................ 5-1
Starting the engine .......................... 5-1
Shifting ............................................ 5-2
Tips for reducing fuel consumption ................................ 5-3
Engine break-in ............................... 5-3
Parking ............................................ 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT ................................... 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 the
panel ............................................ 6-8
Checking the spark plugs ............... 6-8
Engine oil and oil filter cartridge.... 6-10
Replacing the air filter element ..... 6-13
Checking the throttle grip free play ............................................ 6-13
Valve clearance ............................. 6-14
Tires .............................................. 6-14
Cast wheels................................... 6-16
Adjusting the clutch lever free play ............................................ 6-16 Checking the brake lever free
play ............................................ 6-17
Brake light switches ..................... 6-18
Checking the front and rear brake pads .......................................... 6-18
Checking the brake fluid level ...... 6-19
Changing the brake fluid .............. 6-20
Drive belt slack ............................. 6-21
Checking and lubricating the cables ........................................ 6-21
Checking and lubricating the
throttle grip and cable ............... 6-22
Checking and lubricating the brake and shift pedals............... 6-22
Checking and lubricating the brake and clutch levers ............. 6-23
Checking and lubricating the
sidestand................................... 6-23
Lubricating the swingarm pivots......................................... 6-24
Checking the front fork ................. 6-24
Checking the steering................... 6-25
Checking the wheel bearings ....... 6-25
Battery .......................................... 6-26
Replacing the fuses ...................... 6-27
Replacing the headlight bulb ........ 6-29
Tail/brake light .............................. 6-30
Replacing a turn signal light bulb ........................................... 6-31
License plate light......................... 6-31U2DEE0E0.book Page 1 Friday, June 14, 2013 1:29 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-8
6
EAU18752
Removing an d installin g the
panelThe panel shown needs to be removed
to perform some of the maintenance
jobs described in this chapter. Refer to
this section each time the panel needs
to be removed and installed.
EAU54942
Panel A
To remove the panel1. Slide the panel lock cover open,
insert the key into the lock, and
then turn it 1/4 turn clockwise. 2. Pull the panel off as shown.
To install the panel
1. Place the panel in the original po- sition.
2. Turn the key 1/4 turn counter- clockwise, remove it, and then
slide the panel lock cover closed.
EAU42433
Checkin g the spark plu gsThe spark plugs are important engine
components, which are easy to check.
Since heat and deposits will cause any
spark plug to slowly erode, the spark
plugs should be removed and checked
in accordance with the periodic main-
tenance and lubrication chart. In addi-
tion, the condition of the spark plugs
can reveal the condition of the engine.
To remove a spark plu g
1. Remove the appropriate spark plug cover (rear right or front left)
by removing the bolts.
1. Panel A
1
1. Panel lock cover
2. Unlock.
1 2
1. Spark plug cover
2. Bolt
1
2
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-9
62. Remove the spark plug cap.
3. Remove the spark plug as shown,
with the spark plug wrench includ-
ed in the additional tool kit, which
was handed out separately at the
purchase of the vehicle. To check the spark plu
gs
1. Check that the porcelain insulator around the center electrode on
each spark plug is a medium-to-
light tan (the ideal color when the
vehicle is ridden normally).
2. Check that all spark plugs in- stalled in the engine have the
same color.
TIPIf any spark plug shows a distinctly dif-
ferent color, the engine could be oper-
ating improperly. Do not attempt to
diagnose such problems yourself. In-
stead, have a Yamaha dealer check
the vehicle.
3. Check each spark plug for elec-trode erosion and excessive car-
bon or other deposits, and replace
it if necessary.
4. Measure the spark plug gap with a wire thickness gauge and, if nec-
essary, adjust the gap to specifi-
cation.
1. Spark plug cover
2. Bolt
1. Spark plug cap
2
1
1
1. Spark plug wrench
1
Specifie d spark plu g:
NGK/CPR7EA-91. Spark plug gapSpark plu g g ap:
0.8–0.9 mm (0.031–0.035 in)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-34
6
EAU42604
Troubleshootin g chart
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.
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MOTORCYCLE CARE AND STORAGE7-4
7
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
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 dam-
a g e or injury from sparkin g,
make sure to groun d the
spark plu g electro des while
turning 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
6-26.
TIPMake any necessary repairs before
storing the motorcycle.
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INDEXAABS (for ABS models) ........................... 3-11
ABS warning light (for ABS models) ....... 3-4
Air filter element, replacing ................... 6-13
Auxiliary light bulb, replacing ................ 6-32BBattery .................................................. 6-26
Brake and clutch levers, checking and lubricating ........................................... 6-23
Brake and shift pedals, checking and lubricating ........................................... 6-22
Brake fluid, changing ............................ 6-20
Brake fluid level, checking .................... 6-19
Brake lever ............................................ 3-10
Brake lever free play, checking............. 6-17
Brake light switches.............................. 6-18
Brake pedal........................................... 3-11CCables, checking and lubricating ......... 6-21
Care ........................................................ 7-1
Catalytic converter ................................ 3-14
Clutch lever ........................................... 3-10
Clutch lever free play, adjusting ........... 6-16DDimmer switch ........................................ 3-8
Drive belt slack ..................................... 6-21EEngine break-in....................................... 5-3
Engine oil and oil filter cartridge ........... 6-10
Engine stop switch ................................. 3-9
Engine trouble warning light ................... 3-4FFront and rear brake pads, checking.... 6-18
Front fork, checking .............................. 6-24 Fuel ....................................................... 3-13
Fuel consumption, tips for reducing ...... 5-3
Fuel level warning light ........................... 3-4
Fuel tank breather/overflow hose ......... 3-14
Fuel tank cap ........................................ 3-12
Fuses, replacing ................................... 6-27
HHandlebar switches ................................ 3-8
Hazard switch......................................... 3-9
Headlight bulb, replacing ..................... 6-29
High beam indicator light ....................... 3-3
Horn switch ............................................ 3-9IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ............... 3-18
Immobilizer system ................................ 3-1
Immobilizer system indicator light .......... 3-5
Indicator lights and warning lights ......... 3-3LLicense plate light ................................ 6-31MMain switch ............................................ 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 ........................ 3-5NNeutral indicator light ............................. 3-3OOil level warning light ............................. 3-3PPanel, removing and installing ............... 6-8 Parking ....................................................5-4
Part locations ..........................................2-1
Pass switch .............................................3-8
RRESET switch .........................................3-9
Rider seat ..............................................3-16SSafety information ...................................1-1
SELECT switch .......................................3-9
Shifting ....................................................5-2
Shift pedal .............................................3-10
Shock absorber assemblies,
adjusting .............................................3-17
Sidestand ..............................................3-17
Sidestand, checking and lubricating.....6-23
Spark plugs, checking ............................6-8
Specifications .........................................8-1
Starting the engine ..................................5-1
Start switch .............................................3-9
Steering, checking ................................6-25
Steering lock .........................................3-15
Storage ...................................................7-3
Supporting the motorcycle ...................6-32
Swingarm pivots, lubricating ................6-24TTail/brake light ......................................6-30
Throttle grip and cable, checking and lubricating ...........................................6-22
Throttle grip free play, checking ...........6-13
Tires ......................................................6-14
Tool kit ....................................................6-2
Troubleshooting ....................................6-33
Troubleshooting chart ...........................6-34
Turn signal indicator light........................3-3
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