2004 YAMAHA XVS650A fuel

PERIODIC MAINTENANCE AND MINOR REPAIR
6-35
6
EAU25891
Troubleshooting chart
WARNING
EWA10840
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.
U5SCE1E0.book Page 35 Monday, September 8, 2003 11:32 AM

MOTORCYCLE CARE AND STORAGE
7-1
7
EAU26060
Care While the open design of a motorcycle
reveals the attractiveness of the tech-
nology, it also makes it more vulnera-
ble. Rust and corrosion can develop
even if high-quality components are
used. A rusty exhaust pipe may go un-
noticed on a car, however, it detracts
from the overall appearance of a motor-
cycle. Frequent and proper care does
not only comply with the terms of the
warranty, but it will also keep your
motorcycle looking good, extend its life
and optimize its performance.
Before cleaning
1. Cover the muffler outlets with plas-
tic bags after the engine has
cooled down.
2. Make sure that all caps and covers
as well as all electrical couplers
and connectors, including the
spark plug caps, are tightly in-
stalled.
3. Remove extremely stubborn dirt,
like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such prod-ucts onto seals, gaskets and wheel
axles. Always rinse the dirt and de-
greaser off with water.
Cleaning
CAUTION:
ECA10770


Avoid using strong acidic wheel
cleaners, especially on spoked
wheels. If such products are
used on hard-to-remove dirt, do
not leave the cleaner on the af-
fected area any longer than in-
structed. Also, thoroughly rinse
the area off with water, immedi-
ately dry it, and then apply a cor-
rosion protection spray.


Improper cleaning can damage
windshields, cowlings, panels
and other plastic parts. Use only
a soft, clean cloth or sponge
with mild detergent and water to
clean plastic.


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 orthinner, 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,
switches 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 com-
pounds for plastic may leave
scratches on the windshield.
Test the product on a small hid-
den part of the windshield to
make sure that it does not leave
any marks. If the windshield is
scratched, use a quality plastic
polishing compound afterwashing.
U5SCE1E0.book Page 1 Monday, September 8, 2003 11:32 AM

MOTORCYCLE CARE AND STORAGE
7-3
7


Avoid using abrasive polishing
compounds as they will wearaway the paint.
NOTE:Consult a Yamaha dealer for advice onwhat products to use.
EAU26230
Storage Short-term
Always store your motorcycle in a cool,
dry place and, if necessary, protect it
against dust with a porous cover.CAUTION:
ECA10810


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 sev-
eral months:
1. Follow all the instructions in the
“Care” section of this chapter.
2. For motorcycles equipped with a
fuel cock that has an “OFF” posi-
tion: Turn the fuel cock lever to
“OFF”.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
grounded. (This will limit spark-
ing 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.
U5SCE1E0.book Page 3 Monday, September 8, 2003 11:32 AM

SPECIFICATIONS
8-1
8
Dimensions:Overall length:
2450 mm (96.5 in)
Overall width:
930 mm (36.6 in)
Overall height:
1105 mm (43.5 in)
Seat height:
710 mm (28.0 in)
Wheelbase:
1625 mm (64.0 in)
Ground clearance:
140 mm (5.51 in)
Minimum turning radius:
3500 mm (137.8 in)Weight:With oil and fuel:
249.0 kg (549 lb)Engine:Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement:
V-type 2-cylinder
Displacement:
649.0 cm³ (39.60 cu.in)
Bore × stroke:
81.0 × 63.0 mm (3.19 × 2.48 in)
Compression ratio:
9.00 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Type:
SAE10W30 or SAE10W40 or SAE15W40
or SAE20W40 or SAE20W50
Recommended engine oil grade:
API service SE, SF, SG type or higher
Engine oil quantity:
Without oil filter element replacement:
2.60 L (2.75 US qt) (2.29 Imp.qt)
With oil filter element replacement:
2.80 L (2.96 US qt) (2.46 Imp.qt)Final gear oil:Type:
SAE80 API GL-4 Hypoid gear oil
Quantity:
0.19 L (0.20 US qt) (0.17 Imp.qt)Air filter:Air filter element:
Dry elementFuel:Recommended fuel:
Regular unleaded gasoline onlyFuel tank capacity:
16.0 L (4.23 US gal) (3.52 Imp.gal)
Fuel reserve amount:
3.0 L (0.79 US gal) (0.66 Imp.gal)
Carburetor:Manufacturer:
MIKUNI
Type x quantity:
BDS28 x 2Spark plug(s):Manufacturer/model:
NGK/DPR7EA-9
Manufacturer/model:
DENSO/X22EPR-U9
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)Clutch:Clutch type:
Wet, multiple-discTransmission:Primary reduction system:
Spur gear
Primary reduction ratio:
68/38 (1.789)
Secondary reduction system:
Shaft drive
Secondary reduction ratio:
19/18 × 32/11 (3.071)
Transmission type:
Constant mesh 5-speed
Operation:
Left foot operation
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40
U5SCE1E0.book Page 1 Monday, September 8, 2003 11:32 AM

INDEXAAir filter element, cleaning..................... 6-11
Anti-theft alarm (optional)........................ 3-5
Auxiliary light bulb, replacing ................ 6-29BBattery................................................... 6-25
Brake and clutch levers, checking and
lubricating ........................................... 6-22
Brake and shift pedals, checking and
lubricating ........................................... 6-22
Brake fluid, changing ............................ 6-21
Brake fluid level, checking .................... 6-20
Brake lever .............................................. 3-7
Brake lever free play, adjusting............. 6-17
Brake pads and shoes, checking .......... 6-19
Brake pedal ............................................. 3-8
Brake pedal position and free play,
adjusting ............................................. 6-18CCables, checking and lubricating .......... 6-21
Carburetors, adjusting........................... 6-12
Care ........................................................ 7-1
Catalytic converter ................................ 3-10
Clutch lever ............................................. 3-7
Clutch lever free play, adjusting ............ 6-16DDimmer switch ........................................ 3-6EEngine break-in ....................................... 5-4
Engine idling speed............................... 6-12
Engine oil and oil filter element ............... 6-7
Engine, starting a warm .......................... 5-2
Engine stop switch .................................. 3-6
Engine trouble warning light.................... 3-4
FFinal gear oil ......................................... 6-10
Front fork, checking .............................. 6-23
Fuel......................................................... 3-9
Fuel cock .............................................. 3-10
Fuel consumption, tips for reducing........ 5-3
Fuel tank cap .......................................... 3-8
Fuses, replacing ................................... 6-26HHandlebar switches ................................ 3-5
Hazard switch ......................................... 3-6
Headlight bulb, replacing ...................... 6-27
Helmet holder ....................................... 3-12
High beam indicator light ........................ 3-4
Horn switch ............................................. 3-6IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ................ 3-15
Immobilizer system ................................. 3-1
Immobilizer system indicator light........... 3-4
Indicator and warning lights .................... 3-3KKey identification number ....................... 9-1LLuggage strap holders .......................... 3-14MMain switch/steering lock........................ 3-2
Model label ............................................. 9-2NNeutral indicator light .............................. 3-3PPanels, removing and installing .............. 6-5
Parking ................................................... 5-4
Part locations .......................................... 2-1Pass switch ............................................. 3-6
Periodic maintenance and lubrication
chart ...................................................... 6-2
Pre-operation check list........................... 4-2
RRear brake light switch, adjusting ......... 6-19SSafety information ................................... 1-1
Seats ..................................................... 3-11
Shifting .................................................... 5-2
Shift pedal ............................................... 3-7
Shock absorber assembly, adjusting .... 3-13
Sidestand .............................................. 3-15
Sidestand, checking and lubricating...... 6-23
Spark plugs, checking ............................. 6-6
Specifications .......................................... 8-1
Speedometer unit .................................... 3-5
Starter (choke) knob.............................. 3-11
Starting a cold engine ............................. 5-1
Start switch.............................................. 3-6
Steering, checking................................. 6-24
Storage.................................................... 7-3
Storage compartment............................ 3-13
Supporting the motorcycle .................... 6-30TThrottle cable free play, adjusting ......... 6-13
Throttle grip and cable, checking and
lubricating ........................................... 6-21
Tires ...................................................... 6-14
Tool kit..................................................... 6-1
Troubleshooting .................................... 6-34
Troubleshooting chart ........................... 6-35
Turn signal indicator light ........................ 3-3
U5SCE1E0.book Page 1 Monday, September 8, 2003 11:32 AM