2002 YAMAHA XVS650A engine

OPERATION AND IMPORTANT RIDING POINTS
5-3
5
EAU00423
Shifting Shifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing hills,
etc.
The gear positions are shown in the
illustration.NOTE:@ To shift the transmission into the neu-
tral position, press the shift pedal down
repeatedly until it reaches the end of its
travel, and then slightly raise it. @
EC000048
CAUTION:@

Even with the transmission in
the neutral position, do not
coast for long periods of time
with the engine off, and do not
tow the motorcycle for long dis-
tances. The transmission is
properly lubricated only when
the engine is running. Inade-
quate lubrication may damage
the transmission.


Always use the clutch while
changing gears to avoid dam-
aging the engine, transmission,
and drive train, which are not
designed to withstand the
shock of forced shifting.
@
1. Shift pedal
N. Neutral positionXVS650
1. Shift pedal
N. Neutral positionXVS650A
U5SCE0.book Page 3 Thursday, June 7, 2001 11:24 AM

OPERATION AND IMPORTANT RIDING POINTS
5-4
5
EAU02941
Recommended shift points
(for Switzerland only) The recommended shift points during
acceleration are shown in the table be-
low.CF-01ENOTE:_ When shifting down two gears at a
time, reduce the speed accordingly
(e.g., down to 35 km/h when shifting
from 4th to 2nd gear). _
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).
Shift point
(km/h)
1st→2nd
2nd→3rd
3rd→4th
4th→5th23
36
50
60
U5SCE0.book Page 4 Thursday, June 7, 2001 11:24 AM

OPERATION AND IMPORTANT RIDING POINTS
5-5
5
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.
EAU01171*
0–1,000 km
Avoid prolonged operation above
1/3 throttle.
1,000–1,600 km
Avoid prolonged operation above
1/2 throttle.
EC000056*
CAUTION:@ After 1,000 km of operation, the en-
gine oil and final gear oil must be
changed, and the oil filter element
replaced. @1,600 km and beyond
The vehicle can now be operated
normally.
EC000049
CAUTION:@ If any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealer
check the vehicle. @
EAU00457
Parking When parking, stop the engine, re-
move the key from the main switch,
and then turn the fuel cock lever to
“OFF”.
EW000058
WARNING
@

Since the engine and exhaust
system can become very hot,
park in a place where pedestri-
ans or children are not likely to
touch them.


Do not park on a slope or on
soft ground, otherwise the
motorcycle may overturn.
@
U5SCE0.book Page 5 Thursday, June 7, 2001 11:24 AM

6
PERIODIC MAINTENANCE AND MINOR REPAIR
Owner’s tool kit .................................................... 6-1
Periodic maintenance and lubrication chart ......... 6-2
Removing and installing panels ........................... 6-5
Checking the spark plugs .................................... 6-7
Engine oil and oil filter element ............................ 6-9
Final gear oil ...................................................... 6-12
Cleaning the air filter element ............................ 6-13
Adjusting the carburetors ................................... 6-14
Adjusting the engine idling speed ...................... 6-15
Adjusting the throttle cable free play .................. 6-15
Adjusting the valve clearance ............................ 6-16
Tires ................................................................... 6-16
Spoke wheels .................................................... 6-19
Adjusting the clutch lever free play .................... 6-19
Adjusting the brake lever free play ..................... 6-20
Adjusting the brake pedal position and
free play ........................................................... 6-21
Adjusting the rear brake light switch .................. 6-22
Checking the front brake pads and
rear brake shoes .............................................. 6-23
Checking the brake fluid level ............................ 6-24
Changing the brake fluid .................................... 6-25Checking and lubricating the cables ................. 6-25
Checking and lubricating the throttle grip and
cable ............................................................... 6-25
Checking and lubricating the brake and
shift pedals ...................................................... 6-26
Checking and lubricating the brake and
clutch levers .................................................... 6-26
Checking and lubricating the sidestand ............ 6-27
Checking the front fork ...................................... 6-27
Checking the steering ....................................... 6-28
Checking the wheel bearings ............................ 6-29
Battery ............................................................... 6-29
Replacing the fuses .......................................... 6-31
Replacing the headlight bulb ............................. 6-32
Replacing a turn signal light bulb or the tail/
brake light bulb ................................................ 6-33
Supporting the motorcycle ................................ 6-34
Front wheel ....................................................... 6-35
Rear wheel ........................................................ 6-36
Troubleshooting ................................................. 6-38
Troubleshooting chart ........................................ 6-39
U5SCE0.book Page 1 Thursday, June 7, 2001 11:24 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-3
6
10
*WheelsCheck runout, spoke tightness and for damage.
Tighten spokes if necessary.√√√√
11*TiresCheck tread depth and for damage.
Replace if necessary.
Check air pressure.
Correct if necessary.√√√√ √
12*Wheel bearingsCheck bearing for looseness or damage.√√√√
13*SwingarmCheck operation and for excessive play.√√√√
Lubricate with lithium-soap-based grease. Every 50,000 km
14*Steering bearingsCheck bearing play and steering for roughness.√√√√√
Lubricate with lithium-soap-based grease. Every 20,000 km
15*Chassis fastenersMake sure that all nuts, bolts and screws are properly tightened.√√√√ √
16 SidestandCheck operation.
Lubricate.√√√√ √
17*Sidestand switchCheck operation.√√√√√ √
18*Front forkCheck operation and for oil leakage.√√√√
19*Shock absorber
assemblyCheck operation and shock absorber for oil leakage.√√√√
20*CarburetorsCheck starter (choke) operation.
Adjust engine idling speed and synchronization.√√√√√ √
21 Engine oilChange.√√√√√ √
Check oil level and vehicle for oil leakage.√√√√√ √
22 Engine oil filter elementReplace.√√√
23 Final gear oilCheck oil level and vehicle for oil leakage.√√ √
Change.√√√
24*Front and rear brake
switchesCheck operation.√√√√√ √ NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (×1,000 km)
ANNUAL
CHECK
1 10203040
U5SCE0.book Page 3 Thursday, June 7, 2001 11:24 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-7
6
EAU00491
Panel B
To remove the panelRemove 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.
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.
1. Bolt
1. Spark plug cap
U5SCE0.book Page 7 Thursday, June 7, 2001 11:24 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-8
6 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.
To install a spark plug
1. Measure the spark plug gap with a
wire thickness gauge and, if nec-
essary, adjust the gap to specifica-
tion.
2. Clean the surface of the spark
plug gasket and its mating sur-
face, and then wipe off any grime
from the spark plug threads.
3. Install the spark plug with the
spark plug wrench, and then tight-
en it to the specified torque.
1. Spark plug wrench
Specified spark plug:
DPR7EA-9 (NGK) or
X22EPR-U9 (DENSO)
a. Spark plug gapSpark plug gap:
0.8–0.9 mm
U5SCE0.book Page 8 Thursday, June 7, 2001 11:24 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
6
NOTE:@ If a torque wrench is not available when
installing 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. @4. Install the spark plug cap.
EAU03835*
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-left side of the crank-
case.
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. Tightening torque:
Spark plug:
18 Nm (1.8 m·kgf)1. Engine oil level check window
2. Maximum level mark
3. Minimum level mark
4. Engine oil filler capLeft side
U5SCE0.book Page 9 Thursday, June 7, 2001 11:24 AM