check engine YAMAHA XVS950CU 2017 Owner's Manual

Periodic maintenance an d a djustment
6-15
6 3. Insert a new air filter element into
the air filter case. NOTICE: Make
sure that the air filter element is
properly seate d in the air filter
case. The en gine shoul d never
b e operated without the air filter
element installe d, otherwise the
piston(s) an d/or cylin der(s) may
b ecome excessively worn.
[ECA10482]
4. Install the air filter case cover by
installing the bolts.
EAU21386
Checkin g the throttle grip free
playMeasure the throttle grip free play as
shown.
Periodically check the throttle grip free
play and, if necessary, have a Yamaha
dealer 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.
1. Air filter element
1
1. Throttle grip free playThrottle grip free play:
4.0–6.0 mm (0.16–0.24 in)
1
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Periodic maintenance an d a djustment
6-32
6
EAU24331
License plate li ghtIf the license plate light does not come
on, have a Yamaha dealer check the
electrical circuit or replace the bulb.
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.
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Periodic maintenance an d a djustment
6-34
6
EAU42604
Trou bleshootin 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.
UBS5E0E0.book Page 34 Wedne sday, October 19, 2016 10:21 AM

Motorcycle care and stora ge
7-4
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 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 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 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
6-26.
TIPMake any necessary repairs before
storing the motorcycle.
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Consumer information
9-2
9The model label is affixed to the frame
under the rider seat. (See page 3-15.)
Record the information on this label in
the space provided. This information
will be needed when ordering spare
parts from a Yamaha dealer.
EAU69910
Dia
gnostic connectorThe diagnostic connector is located as
shown.
EAU74701
Vehicle data recor din gThis model’s ECU stores certain vehi-
cle data to assist in the diagnosis of
malfunctions and for research and de-
velopment purposes. This data will be
uploaded only when a special Yamaha
diagnostic tool is attached to the vehi-
cle, such as when maintenance checks
or service procedures are performed.
Although the sensors and recorded
data will vary by model, the main data
points are:
 Vehicle status and engine perfor-
mance data
 Fuel-injection and emission-relat-
ed data
Yamaha will not disclose this data to a third party except:  With the consent of the vehicle
owner
 Where obligated by law
 For use by Yamaha in litigation
 For general Yamaha-conducted
research purposes when the data
is not related to an individual vehi-
cle nor owner
1. Diagnostic connector
1
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10-1
10
Index
AABS....................................................... 3-10
ABS warning light ................................... 3-4
Air filter element, replacing ................... 6-14
Auxiliary light bulb, replacing ............... 6-30BBattery .................................................. 6-26
Brake and clutch levers, checking and
lubricating........................................... 6-24
Brake and shift pedals, checking and lubricating........................................... 6-23
Brake fluid, changing............................ 6-22
Brake fluid level, checking.................... 6-20
Brake lever.............................................. 3-9
Brake lever free play, checking ............ 6-19
Brake light switches ............................. 6-19
Brake pedal .......................................... 3-10
Brake/tail light....................................... 6-31CCables, checking and lubricating ......... 6-23
Canister ................................................ 6-11
Care ........................................................ 7-1
Catalytic converter ............................... 3-14
Clutch lever............................................. 3-9
Clutch lever free play, adjusting ........... 6-18DData recording, vehicle........................... 9-2
Diagnostic connector ............................. 9-2
Dimmer switch........................................ 3-7
Drive belt slack ..................................... 6-22EEngine break-in ...................................... 5-3
Engine oil and oil filter cartridge ........... 6-11
Engine serial number .............................. 9-1 Engine stop switch................................. 3-8
Engine trouble warning light .................. 3-4
FFront and rear brake pads, checking ... 6-20
Front fork, checking ............................. 6-25
Fuel ...................................................... 3-12
Fuel consumption, tips for reducing ...... 5-3
Fuel level warning light........................... 3-4
Fuel tank breather/overflow hose ........ 3-13
Fuel tank cap........................................ 3-11
Fuses, replacing ................................... 6-28HHandlebar switches ............................... 3-7
Hazard switch ........................................ 3-8
Headlight bulb, replacing ..................... 6-29
High beam indicator light ....................... 3-3
Horn switch ............................................ 3-8IIdentification 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 ................................ 6-32MMain switch ............................................ 3-2
Maintenance and lubrication, periodic... 6-5
Maintenance, emission control
system ................................................. 6-3
Matte color, caution ............................... 7-1
Model label............................................. 9-1
Multi-function meter unit ........................ 3-5
NNeutral indicator light ............................. 3-3OOil level warning light .............................. 3-3PPanel, removing and installing ................ 6-9
Parking.................................................... 5-4
Part locations.......................................... 2-1
Pass switch............................................. 3-7RRESET switch ......................................... 3-8
Rider seat.............................................. 3-15SSafety information................................... 1-1
SELECT switch ....................................... 3-8
Shifting.................................................... 5-2
Shift pedal............................................... 3-9
Shock absorber assemblies, adjusting ............................................. 3-16
Sidestand.............................................. 3-17
Sidestand, checking and lubricating .... 6-25
Spark plugs, checking ............................ 6-9
Specifications ......................................... 8-1
Starting the engine ................................. 5-1
Start switch ............................................. 3-8
Steering, checking ................................ 6-26
Steering lock ......................................... 3-14
Storage ................................................... 7-3
Supporting the motorcycle ................... 6-32TThrottle grip and cable, checking and lubricating ........................................... 6-23
Throttle grip free play, checking ........... 6-15
Tires ...................................................... 6-16
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