2009 YAMAHA XVS950 check engine light

PERIODIC MAINTENANCE AND ADJUSTMENT
6-6
1
2
3
4
5
6
7
8
9

EAU18751
Removing and installing the
panel
The 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.
EAU19151
Panel A
To remove the panel
Remove the bolt, and then pull the pan-
el off as shown.To install the panel
Place the panel in the original position,
and then install the bolt.

EAU19642
Checking the spark plugs
The spark plugs are important engine
components, which should be checked
periodically, preferably by a Yamaha
dealer. Since heat and deposits will
cause any spark plug to slowly erode,
they should be removed and checked
in accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plugs can re-
veal the condition of the engine.
The porcelain insulator around the cen-
ter 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 en-
gine should have the same color. If any
spark plug shows a distinctly different
color, the engine could be operating im-
properly. Do not attempt to diagnose
such problems yourself. Instead, have
a Yamaha dealer check the vehicle.
If a spark plug shows signs of electrode
erosion and excessive carbon or other
deposits, it should be replaced.
1. Panel A
1

1. Bolt
1

Specified spark plug:
NGK/CPR7EA-9

PERIODIC MAINTENANCE AND ADJUSTMENT
6-7
2
3
4
5
67
8
9
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 wheninstalling 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 speci-
fied torque as soon as possible.
EAU47110
Engine oil and oil filter
cartridge
The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter car-
tridge replaced at the intervals speci-
fied in the periodic maintenance and
lubrication chart.
To check the engine oil level
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion. A slight tilt to the side can
result in a false reading.
2. Start the engine, warm it up for
several minutes, and then turn it
off.
3. Wait a few minutes until the oil set-
tles.
4. Remove the engine oil filler cap,
wipe the dipstick clean, insert it
back into the oil filler hole (without
screwing it in), and then remove it
again to check the oil level.
1. Spark plug gap
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
Tightening torque:
Spark plug:
12.5 Nm (1.3 m·kgf, 9 ft·lbf)

PERIODIC MAINTENANCE AND ADJUSTMENT
6-10
1
2
3
4
5
6
7
8
9
then install and tighten the oil filler
cap.
TIP

Be sure to wipe off spilled oil on any
parts after the engine and exhaust sys-
tem have cooled down.
NOTICE

ECA11620

In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a high-
er quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.

Make sure that no foreign mate-
rial enters the crankcase.
9. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking, im-
mediately turn the engine off and
check for the cause.
TIP

After the engine is started, the engine
oil level warning light should go off if the
oil level is sufficient.
NOTICE

ECA10400
If the oil level warning light flickers
or remains on, immediately turn the
engine off and have a Yamaha dealer
check the vehicle.
10. Turn the engine off, and then
check the oil level and correct it if
necessary.
Recommended engine oil:
See page 8-1.
Oil quantity:
Without oil filter cartridge replace-
ment:
3.70 L (3.91 US qt, 3.26 Imp.qt)
With oil filter cartridge replacement:
4.00 L (4.23 US qt, 3.52 Imp.qt)
1. “CD” specification
2. “ENERGY CONSERVING II”
1
2

PERIODIC MAINTENANCE AND ADJUSTMENT
6-31
2
3
4
5
67
8
9

EAU45221
Replacing an auxiliary light
bulb
If the auxiliary light bulb burns out, re-
place it as follows.
1. Remove the headlight unit. (See
page 6-27.)
2. Remove the auxiliary light socket
(together with the bulb) by pulling it
out.
3. Remove the burnt out bulb by pull-
ing it out.4. Insert a new bulb into the socket.
5. Install the auxiliary light socket (to-
gether with the bulb) by pushing it
in.
6. Install the headlight unit.
EAU24350
Supporting the motorcycle
Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other maintenance
requiring the motorcycle to stand up-
right. Check that the motorcycle is in a
stable and level position before starting
any maintenance. A strong wooden
box can be placed under the engine for
added stability.
To service the front wheel
1. Stabilize the rear of the motorcycle
by using a motorcycle stand or, if
an additional motorcycle stand is
not available, by placing a jack un-
der 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

1. Auxiliary light bulb socket
1

1. Auxiliary light bulb
1

INDEX
A
Air filter element, replacing ...................... 6-11
Auxiliary light bulb, replacing ................... 6-31
B
Battery ..................................................... 6-24
Brake and clutch levers, checking and
lubricating .............................................. 6-21
Brake and shift pedals, checking and
lubricating .............................................. 6-21
Brake fluid, changing ............................... 6-18
Brake fluid level, checking ....................... 6-17
Brake lever .............................................. 3-10
Brake lever free play, adjusting ............... 6-15
Brake pedal ............................................. 3-10
C
Cables, checking and lubricating ............. 6-20
Care ........................................................... 7-1
Catalytic converter ................................... 3-12
Clutch lever................................................ 3-9
Clutch lever free play, adjusting .............. 6-14
D
Dimmer switch ........................................... 3-8
Drive belt slack ........................................ 6-18
E
Engine break-in ......................................... 5-3
Engine idling speed, checking ................. 6-11
Engine oil and oil filter cartridge ................ 6-7
Engine stop switch..................................... 3-8
Engine trouble warning light ...................... 3-4
F
Front and rear brake pads, checking ....... 6-16
Front fork, checking ................................. 6-23
Fuel.......................................................... 3-11
Fuel consumption, tips for reducing........... 5-3Fuel level warning light .............................. 3-4
Fuel tank cap ........................................... 3-10
Fuses, replacing ...................................... 6-26
H
Handlebar switches ................................... 3-7
Hazard switch ............................................ 3-8
Headlight bulb, replacing ......................... 6-27
Helmet holder .......................................... 3-14
High beam indicator light ........................... 3-3
Horn switch................................................ 3-8
I
Identification numbers ............................... 9-1
Ignition circuit cut-off system ................... 3-16
Immobilizer system.................................... 3-1
Immobilizer system indicator light ............. 3-4
Indicator and warning lights....................... 3-3
K
Key identification number .......................... 9-1
L
License plate light bulb, replacing ........... 6-30
M
Main switch/steering lock .......................... 3-2
Maintenance and lubrication, periodic ....... 6-3
Maintenance, emission control system ..... 6-2
Matte color, caution ................................... 7-1
Model label ................................................ 9-2
Multi-function meter unit ............................ 3-4
N
Neutral indicator light................................. 3-3
O
Oil level warning light ................................ 3-3
P
Panel, removing and installing .................. 6-6Parking ...................................................... 5-4
Part locations ............................................ 2-1
Pass switch ............................................... 3-8
R
Rear brake light switch, adjusting ........... 6-16
Rear suspension, lubricating................... 6-22
RESET switch ........................................... 3-9
Rider seat................................................ 3-13
S
Safety information ..................................... 1-1
SELECT switch ......................................... 3-8
Shifting ...................................................... 5-2
Shift pedal ................................................. 3-9
Shock absorber assembly, adjusting ...... 3-14
Sidestand ................................................ 3-16
Sidestand, checking and lubricating ....... 6-22
Spark plugs, checking ............................... 6-6
Specifications ............................................ 8-1
Starting the engine .................................... 5-1
Start switch ............................................... 3-8
Steering, checking .................................. 6-23
Storage ..................................................... 7-3
Supporting the motorcycle ...................... 6-31
T
Tail/brake light bulb, replacing ................ 6-28
Throttle cable free play, checking ........... 6-12
Throttle grip and cable, checking and
lubricating ............................................. 6-20
Tires ........................................................ 6-12
Tool kit ...................................................... 6-1
Troubleshooting ...................................... 6-32
Troubleshooting chart ............................. 6-33
Turn signal indicator light .......................... 3-3
Turn signal light bulb, replacing .............. 6-29