check engine light YAMAHA XVS250 2002 Owners Manual

EAU00009
TABLE OF CONTENTS
GIVE SAFETY THE RIGHT OF WAY .................1-1
DESCRIPTION ...................................................2-1
Left view ............................................................. 2-1
Right view...........................................................2-2
Controls and instruments ................................... 2-3
INSTRUMENT AND CONTROL FUNCTIONS ....3-1
Main switch/steering lock ..................................3-1
Indicator and warning lights ..............................3-2
Speedometer unit ..............................................3-3
Self-diagnosis device ........................................3-3
Anti-theft alarm (optional) ..................................3-3
Handlebar switches ...........................................3-4
Clutch lever .......................................................3-5
Shift pedal .........................................................3-5
Brake lever ........................................................3-6
Brake pedal .......................................................3-6
Fuel tank cap .....................................................3-6
Fuel ...................................................................3-7
Fuel cock ...........................................................3-8
Starter (choke) lever ..........................................3-9
Helmet holder ....................................................3-9
Adjusting the shock absorber assemblies ....... 3-10
Sidestand ........................................................ 3-11
Ignition circuit cut-off system ........................... 3-11PRE-OPERATION CHECKS ...............................4-1
Pre-operation check list .....................................4-1
OPERATION AND IMPORTANT RIDING
POINTS................................................................5-1
Starting the engine ............................................5-1
Starting a warm engine .....................................5-2
Shifting ..............................................................5-3
Recommended shift points
(for Switzerland only) .....................................5-3
Tips for reducing fuel consumption ...................5-4
Engine break-in .................................................5-4
Parking ..............................................................5-5
PERIODIC MAINTENANCE AND MINOR
REPAIR................................................................6-1
Owner’s tool kit ..................................................6-1
Periodic maintenance and lubrication chart ......6-2
Removing and installing panels ........................6-5
Checking the spark plugs ..................................6-8
Engine oil and oil filter element .......................6-10
Cleaning the air filter element .........................6-12
Adjusting the carburetor ..................................6-15
Adjusting the engine idling speed ...................6-15
Adjusting the throttle cable free play ...............6-16
Adjusting the valve clearance .........................6-16
Tires ................................................................6-16
Spoke wheels ..................................................6-19
123
456
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INSTRUMENT AND CONTROL FUNCTIONS
3-2
3
EAU01590
(Parking)
The steering is locked, and the taillight
and auxiliary light are on, but all other
electrical systems are off. The key can
be removed.
The steering must be locked before the
key can be turned to “”.
ECA00043
CAUTION:_ Do not use the parking position for
an extended length of time, other-
wise the battery may discharge. _
EAU03034
Indicator and warning lights
EAU00063
High beam indicator light “”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU00057
Turn signal indicator light “”
This indicator light flashes when the
turn signal switch is pushed to the left
or right.
EAU00061
Neutral indicator light “”
This indicator light comes on when the
transmission is in the neutral position.
EAU04243
Engine trouble warning light “”
This warning light comes on or flashes
when an electrical circuit monitoring
the engine is defective. When this oc-
curs, have a Yamaha dealer check the
self-diagnosis system.NOTE:_ This warning light comes on for a few
seconds when the key is turned to
“ON”, but this does not indicate a mal-
function. _
1. High beam indicator light “”
2. Turn signal indicator light “”
3. Neutral indicator light “”
4. Engine trouble warning light “”
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INSTRUMENT AND CONTROL FUNCTIONS
3-3
3
EAU00095
Speedometer unit The speedometer unit is equipped with
a speedometer, an odometer and a
tripmeter. The speedometer shows
riding speed. The odometer shows the
total distance traveled. The tripmeter
shows the distance traveled since it
was last set to zero with the reset knob.
The tripmeter can be used to estimate
the distance that can be traveled with a
full tank of fuel. This information will en-
able you to plan future fuel stops.
EAU03732
Self-diagnosis device This model is equipped with a self-di-
agnosis device for various electrical
circuits.
If any of those circuits are defective,
the engine trouble warning light will
come on or flash. If this occurs, have a
Yamaha dealer check the motorcycle.
ECA00061
CAUTION:_ To prevent engine damage, be sure
to consult a Yamaha dealer as soon
as possible if this occurs. _
EAU00109
Anti-theft alarm (optional) This motorcycle can be equipped with
an optional anti-theft alarm by a
Yamaha dealer. Contact a Yamaha
dealer for more information.
1. Speedometer
2. Odometer
3. Tripmeter
4. Tripmeter reset knob
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5-1
5
EAU00372
5-OPERATION AND IMPORTANT RIDING POINTS
EAU00373
WARNING
_

Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer re-
garding any control or function
that you do not thoroughly
understand.


Never start the engine or operate
it in a closed area for any length
of time. Exhaust fumes are poi-
sonous, and inhaling them can
cause loss of consciousness
and death within a short time. Al-
ways make sure that there is ad-
equate ventilation.


Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised com-
pletely, it could contact the
ground and distract the opera-
tor, resulting in a possible loss
of control.
_
EAU04192*
Starting the engine In order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:

The transmission is in the neutral
position.


The transmission is in gear with
the clutch lever pulled and the
sidestand up.
EW000054
WARNING
_

Before starting the engine,
check the function of the igni-
tion circuit cut-off system ac-
cording to the procedure
described on page 3-12.


Never ride with the sidestand
down.
_
1. Turn the fuel cock lever to “ON”.
2. Turn the key to “ON” and make
sure that the engine stop switch is
set to “”.
3. Shift the transmission into the neu-
tral position.NOTE:_ When the transmission is in the neutral
position, the neutral indicator light
should be on, otherwise have a
Yamaha dealer check the electrical cir-
cuit. _1. Pointed end positioned over “ON”
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OPERATION AND IMPORTANT RIDING POINTS
5-2
5 4. Turn the starter (choke) on and
completely close the throttle. (See
page 3-9 for starter (choke) opera-
tion.)
5. Start the engine by pushing the
start switch.
NOTE:_ If the engine fails to start, release the
start switch, wait a few seconds, and
then try again. Each starting attempt
should be as short as possible to pre-
serve the battery. Do not crank the en-
gine more than 10 seconds on any one
attempt. _
ECA00101
CAUTION:_ The engine trouble warning light
should come on when the key is
turned to “ON”, and then go off after
a few seconds. If the engine trouble
warning light comes on or flashes
after starting, immediately stop the
engine, and have a Yamaha dealer
check the self-diagnosis system. _
6. After starting the engine, move the
starter (choke) lever back halfway.
ECA00055
CAUTION:_ For maximum engine life, always
warm the engine up before starting
off. Never accelerate hard when the
engine is cold! _7. When the engine is warm, turn the
starter (choke) off.NOTE:_ The engine is warm when it responds
normally to the throttle with the starter
(choke) turned off. _
EAU01258
Starting a warm engine Follow the same procedure as for start-
ing a cold engine with the exception
that the starter (choke) is not required
when the engine is warm.
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OPERATION AND IMPORTANT RIDING POINTS
5-4
5
EAU00424
Tips for reducing fuel
consumption Fuel consumption depends largely on
your riding style. Consider the following
tips to reduce fuel consumption:

Thoroughly warm up the engine.


Turn the starter (choke) off as
soon as possible.


Shift up swiftly, and avoid high en-
gine speeds during acceleration.


Do not rev the engine while shift-
ing down, and avoid high engine
speeds with no load on the engine.


Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffic jams, at traf-
fic lights or at railroad crossings).
EAU01128
Engine break-in There is never a more important period
in the life of your engine than the period
between 0 and 1,600 km. For this rea-
son, you should read the following ma-
terial carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1,600 km. The various parts in the en-
gine wear and polish themselves to the
correct operating clearances. During
this period, prolonged full-throttle oper-
ation or any condition that might result
in engine overheating must be avoided.
EAU03845*
0–1,000 km
Avoid prolonged operation above
1/3 throttle.
1,000–1,600 km
Avoid prolonged operation above
1/2 throttle.
ECA00080*
CAUTION:_ After 1,000 km of operation, the en-
gine oil must be changed, and the
oil filter element replaced. _1,600 km and beyond
The vehicle can now be operated nor-
mally.
EC000049
CAUTION:_ If any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealer
check the vehicle. _
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-8
6
EAU03329
Checking the spark plugs The 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 mainte-
nance and lubrication chart. In addition,
the condition of the spark plugs can re-
veal the condition of the engine.
To remove a spark plug
1. Remove the spark plug cap.2. Remove the spark plug as shown,
with the spark plug wrench includ-
ed in the owner’s tool kit.To check the spark plugs
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
motorcycle is ridden normally).
2. Check that all spark plugs installed
in the engine have the same color.
NOTE:_ If any spark plug shows a distinctly dif-
ferent color, the engine could be defec-
tive. Do not attempt to diagnose such
problems yourself. Instead, have a
Yamaha dealer check the motorcycle. _3. Check each spark plug for elec-
trode erosion and excessive car-
bon or other deposits, and replace
it if necessary.
1. Spark plug cap
1. Spark plug wrench
Specified spark plug:
CR6HSA (NGK) or
U20FSR-U (DENSO)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
6
EAU04433
Engine oil and oil filter
element The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter ele-
ment replaced at the intervals specified
in the periodic maintenance and lubri-
cation chart.
To check the engine oil level
1. Place the motorcycle on a level
surface and hold it in an upright
position.NOTE:_ Make sure that the motorcycle is posi-
tioned straight up when checking the oil
level. 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, and then check the oil level
through the check window located
at the bottom-right side of the
crankcase.
NOTE:_ The engine oil should be between the
minimum and maximum level marks. _4. If the engine oil is below the mini-
mum level mark, add sufficient oil
of the recommended type to raise
it to the correct level.To change the engine oil (with or
without oil filter element replace-
ment)
1. Start the engine, warm it up for
several minutes, and then turn it
off.
2. Place an oil pan under the engine
to collect the used oil.1. Engine oil level check window
2. Maximum level mark
3. Minimum level mark
4. Engine oil filler capRight side
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-26
6
EC000096
CAUTION:_ Improper drive chain slack will over-
load the engine as well as other vital
parts of the motorcycle and can lead
to chain slippage or breakage. To
prevent this from occurring, keep
the drive chain slack within the
specified limits. _3. Tighten both locknuts and the axle
nut to the specified torques.
4. Adjust the brake pedal free play.
(See page 6-21 for brake pedal
free play adjustment procedures.)
EW000103
WARNING
_ After adjusting the brake pedal free
play, check the operation of the
brake light. _
EAU03006
Lubricating the drive chain The drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.
EC000097
CAUTION:_ The drive chain must be lubricated
after washing the motorcycle or
riding in the rain. _1. Clean the drive chain with kero-
sene and a small soft brush.
ECA00053
CAUTION:_ To prevent damaging the O-rings,
do not clean the drive chain with
steam cleaners, high-pressure
washers or inappropriate solvents. _
2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive
chain with a special O-ring chain
lubricant.
ECA00052
CAUTION:_ Do not use engine oil or any other
lubricants for the drive chain, as
they may contain substances that
could damage the O-rings. _
Tightening torques:
Locknut:
16 Nm (1.6 m·kgf)
Axle nut:
104 Nm (10.4 m·kgf)
E_5kr.book Page 26 Friday, December 14, 2001 11:33 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-36
6
EAU03218
Replacing a turn signal light
bulb 1. Remove the turn signal lens by re-
moving the screws.2. Remove the defective bulb by
pushing it in and turning it counter-
clockwise.
3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screws.
EC000108
CAUTION:_ Do not overtighten the screws, oth-
erwise the lens may break. _
EAU01579
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 mainte-
nance requiring the motorcycle to
stand upright. Check that the motor-
cycle is in a stable and level position
before 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 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.
1. Screw (× 2)
1. Turn signal light bulb
E_5kr.book Page 36 Friday, December 14, 2001 11:33 AM