fuel YAMAHA XVS250 2002 User Guide
[x] Cancel search | Manufacturer: YAMAHA, Model Year: 2002, Model line: XVS250, Model: YAMAHA XVS250 2002Pages: 88, PDF Size: 4.67 MB
Page 31 of 88
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. _
E_5kr.book Page 4 Friday, December 14, 2001 11:33 AM
Page 34 of 88
PERIODIC MAINTENANCE AND MINOR REPAIR
6-2
6
EAU03685
Periodic maintenance and lubrication chart
NOTE:_
The annual checks must be performed every year, except if a kilometer-based maintenance is performed instead.
From 50,000 km, repeat the maintenance intervals starting from 10,000 km.
Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and techni-
cal skills.
_CP-03ENO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (×1,000 km)
ANNUAL
CHECK
1 10203040
1
*Fuel lineCheck fuel hoses and vacuum hose for cracks or damage.√√√√ √
2*Fuel filterCheck condition.√√
3 Spark plugsCheck condition.
Clean and regap.√√
Replace.√√
4*ValvesCheck valve clearance.
Adjust.√√√√
5 Air filter elementClean.√√
Replace.√√
6ClutchCheck operation.
Adjust.√√√√√
7*Front brakeCheck operation, fluid level and vehicle for fluid leakage.
(See NOTE on page 6-4.)√√ √ √ √ √
Replace brake pads. Whenever worn to the limit
8*Rear brakeCheck operation and adjust brake pedal free play.√√√√√ √
Replace brake shoes. Whenever worn to the limit
9*Brake hoseCheck for cracks or damage.√√√√ √
Replace. (See NOTE on page 6-4.) Every 4 years
E_5kr.book Page 2 Friday, December 14, 2001 11:33 AM
Page 48 of 88
PERIODIC MAINTENANCE AND MINOR REPAIR
6-16
6
EAU00635
Adjusting the throttle cable
free play The throttle cable free play should
measure 3–5 mm at the throttle grip.
Periodically check the throttle cable
free play and, if necessary, have a
Yamaha dealer adjust it.
EAU00637
Adjusting the valve clearance The 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.
EAU04463
Tires To maximize the performance, durabil-
ity, and safe operation of your motor-
cycle, note the following points
regarding the specified tires.
Tire air pressure
The tire air pressure should be
checked and, if necessary, adjusted
before each ride.
EW000082
WARNING
_
The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).
The tire air pressure must be
adjusted in accordance with the
riding speed and with the total
weight of rider, passenger, car-
go, and accessories approved
for this model.
_
a. Throttle cable free playE_5kr.book Page 16 Friday, December 14, 2001 11:33 AM
Page 72 of 88
PERIODIC MAINTENANCE AND MINOR REPAIR
6-40
6
EAU04487
To install the rear wheel
1. Insert the wheel axle from the left-
hand side, and then install the axle
nut.
2. Install the drive chain onto the rear
sprocket, and then adjust the drive
chain slack. (See page 6-25 for
drive chain slack adjustment pro-
cedures.)
3. Lower the rear wheel so that it is
on the ground.
4. Install the brake rod onto the brake
camshaft lever, and then install
the brake pedal free play adjusting
nut onto the brake rod.
5. Connect the brake torque rod to
the brake shoe plate by installing
the bolt and the nut, and then tight-
en the nut to the specified torque.6. Tighten the axle nut to the speci-
fied torque.
7. Adjust the brake pedal position
and free play. (See page 6-20 for
brake pedal position and free play
adjustment procedures.)
EW000103
WARNING
_ After adjusting the brake pedal free
play, check the operation of the
brake light. _
EAU01008
Troubleshooting Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting chart
represents a quick and easy procedure
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills. Tightening torque:
Brake torque rod nut:
23 Nm (2.3 m·kgf)
Tightening torque:
Axle nut:
104 Nm (10.4 m·kgf)
E_5kr.book Page 40 Friday, December 14, 2001 11:33 AM
Page 73 of 88
PERIODIC MAINTENANCE AND MINOR REPAIR
6-41
6
EAU01297
Troubleshooting chart
EW000125
WARNING
_ Keep away open flames and do not smoke while checking or working on the fuel system. _
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
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.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Open the throttle halfway and operate
the electric starter.
E_5kr.book Page 41 Friday, December 14, 2001 11:33 AM
Page 75 of 88
MOTORCYCLE CARE AND STORAGE
7-2
7
Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abrasive
cleaning products, solvent or
thinner, fuel (gasoline), rust re-
movers or inhibitors, brake flu-
id, antifreeze or electrolyte.
Do not use high-pressure wash-
ers or steam-jet cleaners since
they cause water seepage and
deterioration in the following ar-
eas: seals (of wheel and swing-
arm bearings, fork and brakes),
electric components (couplers,
connectors, instruments, switch-
es and lights), breather hoses
and vents.
For motorcycles equipped with
a windshield: Do not use strong
cleaners or hard sponges as
they will cause dulling or
scratching. Some cleaning
compounds for plastic may
leave scratches on the wind-
shield. Test the product on a
small hidden part of the wind-
shield to make sure that it does
not leave any marks. If the wind-
shield is scratched, use a quali-
ty plastic polishing compound
after washing.
_After normal useRemove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush
for hard-to-reach areas. Stubborn dirt
and insects will come off more easily if
the area is covered with a wet cloth for
a few minutes before cleaning.After riding in the rain, near the sea or
on salt-sprayed roadsSince sea salt or salt sprayed on roads
during winter are extremely corrosive in
combination with water, carry out the
following steps after each ride in the
rain, near the sea or on salt-sprayed
roads.NOTE:_ Salt sprayed on roads in the winter may
remain well into spring. _1. Clean the motorcycle with cold
water and a mild detergent, after
the engine has cooled down.
ECA00012
CAUTION:_ Do not use warm water since it in-
creases the corrosive action of the
salt. _2. After drying the motorcycle, apply
a corrosion protection spray on all
metal, including chrome- and nick-
el-plated, surfaces to prevent
corrosion.
E_5kr.book Page 2 Friday, December 14, 2001 11:33 AM
Page 77 of 88
MOTORCYCLE CARE AND STORAGE
7-4
7
Storage Short-term
Always store your motorcycle in a cool,
dry place and, if necessary, protect it
against dust with a porous cover.
ECA00014
CAUTION:_
Storing the motorcycle in a
poorly ventilated room or cover-
ing it with a tarp, while it is still
wet, will allow water and humid-
ity to seep in and cause rust.
To prevent corrosion, avoid
damp cellars, stables (because
of the presence of ammonia)
and areas where strong chemi-
cals are stored.
_
Long-term
Before storing your motorcycle for
several months:
1. Follow all the instructions in the
“Care” section of this chapter.
2. Turn the fuel cock lever to “ON”.
3. Drain the carburetor float cham-
bers by loosening the drain bolts;
this will prevent fuel deposits from
building up. Pour the drained fuel
into the fuel tank.
4. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
5. Perform the following steps to pro-
tect 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 electrodes are ground-
ed. (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.)
e. Remove the spark plug caps from
the spark plugs, and then install
the spark plugs and the spark plug
caps.
EWA00003
WARNING
_ To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turning
the engine over. _
E_5kr.book Page 4 Friday, December 14, 2001 11:33 AM
Page 79 of 88
8-1
8
EAU01038
8-SPECIFICATIONS
Specifications CS-01E
Model XVS250
Dimensions
Overall length 2,320 mm
Overall width 910 mm
Overall height 1,075 mm
Seat height 670 mm
Wheelbase 1,530 mm
Ground clearance 150 mm
Minimum turning radius 2,900 mm
Basic weight (with oil and full
fuel tank)
159 kg
Engine
Engine type Air-cooled 4-stroke, SOHC
Cylinder arrangement V type 2-cylinder
Displacement 249 cm
3
Bore × stroke 49 × 66 mm
Compression ratio 10:1
Star ting system Electric star ter
Lubrication system Wet sumpEngine oil
Ty p e
Recommended engine oil
classification API Service SE, SF, SG or
higher
Quantity
Without oil filter element
replacement 1.4 L
With oil filter element
replacement 1.6 L
Total amount (dry engine) 1.75 L
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40
CAUTION:Be sure to use motor oils that do not contain anti-fric-
tion modifiers. Passenger car motor oils (often labeled
“ENERGY CONSERVING II”) contain anti-friction addi-
tives which will cause clutch and/or starter clutch slip-
page, resulting in reduced component life and poor
engine performance.
E_5kr.book Page 1 Friday, December 14, 2001 11:33 AM
Page 80 of 88
SPECIFICATIONS
8-2
8
Air filterDry element
Fuel
Type REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity 11 L
Fuel reserve amount 3.4 L
Carburetor
Manufacturer MIKUNI
Model × quantity BDS26 × 1
Spark plug
Manufacturer/model NGK / CR6HSA or
DENSO / U20FSR-U
Gap 0.6–0.7 mm
Clutch typeWet, multiple-disc
Transmission
Primary reduction system Spur gear
Primary reduction ratio 3.130
Secondary reduction system Chain drive
Secondary reduction ratio 2.800
Number of drive chain
sprocket teeth (front/rear) 20/56
Transmission type Constant-mesh 5-speed
Operation Left footGear ratio
1st 2.643
2nd 1.684
3rd 1.261
4th 1.000
5th 0.821
Chassis
Frame type Double cradle
Caster angle 35°
Trail 135 mm
Tires
Fr o n t
Type Tube tire
Size 80/100-18 47P
Size 80/100-18 M/C 47P
Manufacturer/
modelCHENG SHIN / C-916
IRC / MARBELLA NF27
Rear
Type Tube tire
Size 130/90-15 M/C 66P
Manufacturer/
modelCHENG SHIN / C-915
IRC / MARBELLA NR31
E_5kr.book Page 2 Friday, December 14, 2001 11:33 AM