2008 YAMAHA XCITY 250 engine

OPERATION AND IMPORTANT RIDING POINTS
5-2
5
EAU16760
Starting off NOTE:Before starting off, allow the engine towarm up.
1. While pulling the rear brake lever
with your left hand and holding the
grab bar with your right hand, push
the scooter off the centerstand.
2. Sit astride the seat, and then ad-
just the rear view mirrors.
3. Switch the turn signal on.
4. Check for oncoming traffic, and
then slowly turn the throttle grip (on
the right) in order to take off.
5. Switch the turn signal off.
EAU16780
Acceleration and deceleration The speed can be adjusted by opening
and closing the throttle. To increase the
speed, turn the throttle grip in direction
(a). To reduce the speed, turn the throt-
tle grip in direction (b).
EAU16792
Braking 1. Close the throttle completely.
2. Apply both front and rear brakes
simultaneously while gradually in-
creasing the pressure.
WARNING
EWA10300


Avoid braking hard or suddenly
(especially when leaning over to
one side), otherwise the scooter
may skid or overturn.


Railroad crossings, streetcar
rails, iron plates on road con-
struction sites, and manhole
covers become extremely slip-
pery when wet. Therefore, slow
1. Grab bar
1
ZAUM0650
(b)
(a)
ZAUM0199
PUSHOPEN
ZAUM0651

OPERATION AND IMPORTANT RIDING POINTS
5-3
5 down when approaching such
areas and cross them with cau-
tion.


Keep in mind that braking on a
wet road is much more difficult.


Ride slowly down a hill, as brak-
ing downhill can be very diffi-cult.
EAU16820
Tips for reducing fuel con-
sumption Fuel consumption depends largely on
your riding style. Consider the following
tips to reduce fuel consumption:

Avoid high engine speeds during
acceleration.


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 traffic
lights or at railroad crossings).
EAU16841
Engine break-in There is never a more important period
in the life of your engine than the period
between 0 and 1600 km (1000 mi). For
this reason, you should read the follow-
ing material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1600 km (1000 mi). The various parts in
the engine wear and polish themselves
to the correct operating clearances.
During this period, prolonged full-throt-
tle operation or any condition that might
result in engine overheating must be
avoided.
EAUM2010
0–1000 km (0–600 mi)
Avoid prolonged operation above 1/3
throttle.
1000–1600 km (600–1000 mi)
Avoid prolonged operation above 1/2
throttle.

OPERATION AND IMPORTANT RIDING POINTS
5-4
5
CAUTION:
ECA11660
After 1000 km (600 mi) of operation,
be sure to replace the engine oil andfinal transmission oil.
1600 km (1000 mi) and beyond
The vehicle can now be operated nor-
mally.CAUTION:
ECA10270
If any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealercheck the vehicle.
EAU17212
Parking When parking, stop the engine, and
then remove the key from the main
switch.
WARNING
EWA10310


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 vehiclemay overturn.
CAUTION:
ECA10380
Never park in an area where there
are fire hazards such as grass orother flammable materials.

PERIODIC MAINTENANCE AND MINOR REPAIR
6-1
6
EAU17280
Safety is an obligation of the owner. Pe-
riodic inspection, adjustment and lubri-
cation will keep your vehicle in the
safest and most efficient condition pos-
sible. The most important points of in-
spection, adjustment, and lubrication
are explained on the following pages.
The intervals given in the periodic
maintenance and lubrication chart
should be simply considered as a gen-
eral guide under normal riding condi-
tions. However, DEPENDING ON THE
WEATHER, TERRAIN, GEOGRAPHI-
CAL LOCATION, AND INDIVIDUAL
USE, THE MAINTENANCE INTER-
VALS MAY NEED TO BE SHORT-
ENED.
WARNING
EWA10320
If you are not familiar with mainte-
nance work, have a Yamaha dealerdo it for you.
WARNING
EWA10330
This scooter is designed for use on
paved roads only. If this scooter is
operated in abnormally dusty, mud-dy or wet conditions, the air filter el-
ement should be cleaned or
replaced more frequently, otherwise
rapid engine wear may result. Con-
sult a Yamaha dealer for proper
maintenance intervals.
EAU17470
Owner’s tool kit The owner’s tool kit is located inside the
rear storage compartment. (See page
3-11.)
The service information included in this
manual and the tools provided in the
owner’s tool kit are intended to assist
you in the performance of preventive
maintenance and minor repairs. How-
ever, additional tools such as a torque
wrench may be necessary to perform
certain maintenance work correctly.NOTE:If you do not have the tools or experi-
ence required for a particular job, havea Yamaha dealer perform it for you.
WARNING
EWA10350
Modifications not approved by
Yamaha may cause loss of perfor-
mance and render the vehicle un-
safe for use. Consult a Yamaha
dealer before attempting any chang-es.

PERIODIC MAINTENANCE AND MINOR REPAIR
6-3
6
10*TiresCheck tread depth and for damage.
Replace if necessary.
Check air pressure.
Correct if necessary.√√√√ √
11*Wheel bearingsCheck bearing for looseness or damage.√√√√
12*Steering bearingsCheck bearing play and steering for roughness.√√√√√
Lubricate with lithium-soap-based grease. Every 20000 km
13*Chassis fastenersMake sure that all nuts, bolts and screws are properly
tightened.√√√√ √
14 Sidestand, centerstandCheck operation.
Lubricate.√√√√ √
15*Sidestand switchCheck operation.√√√√√ √
16*Front forkCheck operation and for oil leakage.√√√√
17*Shock absorber assem-
bliesCheck operation and shock absorbers for oil leakage.√√√√
18*Fuel injectionCheck engine idle speed.√√√√√ √
19 Engine oilChange. (See page 3-2.)√When the oil change indicator light comes
on (every 3000 km)
Check oil level and vehicle for oil leakage. Every 3000 km√
20*Engine oil strainerClean.√
21*Cooling systemCheck coolant level and vehicle for coolant leakage.√√√√ √
Change. Every 3 years
22 Final transmission oilCheck vehicle for oil leakage.√√ √
Change.√√√
23*V- b e l tReplace. Every 20000 km NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (× 1000 km)
ANNUAL
CHECK
1 10203040

PERIODIC MAINTENANCE AND MINOR REPAIR
6-6
6To install the cowling
1. Connect the headlight coupler and
the turn signal couplers.
2. Place the cowling in the original
position, and then install the
screws.
EAU19481
Panel A
To remove the panel1. Open the seat. (See page 3-10.)
2. Remove the screws, and then pull
the panel off as shown.
To install the panelPlace the panel in the original position,
and then install the screws.
EAU19210
Panel B
To remove the panelRemove the screws, and then take the
panel off.
To install the panelPlace the panel in the original position,
and then install the screws.
EAU19620
Checking the spark plug The spark plug is an important engine
component, which should be checked
periodically, preferably by a Yamaha
dealer. Since heat and deposits will
cause any spark plug to slowly erode, it
should be removed and checked in ac-
cordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plug can re-
veal the condition of the engine.
The porcelain insulator around the cen-
ter electrode of the spark plug should
be a medium-to-light tan (the ideal color
when the vehicle is ridden normally). If
the spark plug shows a distinctly differ-
ent color, the engine could be defec-
tive. Do not attempt to diagnose such
problems yourself. Instead, have a
Yamaha dealer check the vehicle.
If the spark plug shows signs of elec-
trode erosion and excessive carbon or
other deposits, it should be replaced.
1. Screw
2. Panel AZAUM0656
1
2
1. ScrewZAUM0657
1
Specified spark plug:
NGK/DPR8EA-9

PERIODIC MAINTENANCE AND MINOR REPAIR
6-7
6 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.
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.
EAUM1550
Engine oil The engine oil level should be checked
before each ride. In addition, the oil
must be changed at the intervals spec-
ified in the periodic maintenance and
lubrication chart and when the service
indicator light comes on.
To check the engine oil level
1. Place the scooter on the center-
stand.NOTE:Make sure that the scooter is posi-
tioned straight up when checking the oil
level. A slight tilt to the side can result ina 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, remove the 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 gapSpark plug gap:
0.8–0.9 mm (0.031–0.035 in)
Tightening torque:
Spark plug:
17.5 Nm (1.75 m·kgf, 12.5 ft·lbf)
1
ZAUM0037

PERIODIC MAINTENANCE AND MINOR REPAIR
6-8
6
NOTE:The engine oil should be between theminimum 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.
5. Insert the dipstick into the oil filler
hole, and then tighten the oil filler
cap.
To change the engine oil
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.
3. Remove the engine oil filler cap
and the engine oil drain bolt to
drain the oil from the crankcase.
4. Check the washer for damage and
replace it if necessary.5. Install the washer and the engine
oil drain bolt, and then tighten the
drain bolt to the specified torque.
NOTE:
Make sure that the washer is properlyseated.
6. Add the specified amount of the
recommended engine oil, and then
install and tighten the oil filler cap.CAUTION:
ECA11670


Do not use oils with a diesel
specification of “CD” or oils of a
higher quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.
1. Engine oil filler cap
2. Maximum level mark
3. Minimum level mark
1
321ZAUM0685
1. Engine oil drain bolt
1. Engine oil drain bolt
2. Washer
11
ZAUM0686
12
ZAUM0129
Tightening torque:
Engine oil drain bolt:
20 Nm (2.0 m·kgf, 14 ft·lbf)
Recommended engine oil:
See page 8-1.
Oil change quantity:
1.20 L (1.27 US qt) (1.06 Imp.qt)