2007 YAMAHA XCITY 250 engine

PERIODIC MAINTENANCE AND MINOR REPAIR
6-29
6 Engine overheating
WARNING
EWA10400


Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.


After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hissingsound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
NOTE:If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolantas soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See NOTE.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.

SCOOTER CARE AND STORAGE
7-1
7
EAU26091
Care While the open design of a scooter re-
veals the attractiveness of the technol-
ogy, it also makes it more vulnerable.
Rust and corrosion can develop even if
high-quality components are used. A
rusty exhaust pipe may go unnoticed
on a car, however, it detracts from the
overall appearance of a scooter. Fre-
quent and proper care does not only
comply with the terms of the warranty,
but it will also keep your scooter looking
good, extend its life and optimize its
performance.
Before cleaning
1. Cover the muffler outlet with a
plastic bag 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 cap, 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:
ECA10781


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
plastic parts such as cowlings,
panels, windshields, headlight
lenses, meter lenses, etc. 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 abrasivecleaning 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,
switches and lights), breather
hoses and vents.


For scooters 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.

SCOOTER 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.
EAU36560
Storage Short-term
Always store your scooter in a cool, dry
place and, if necessary, protect it
against dust with a porous cover.CAUTION:
ECA10820


Storing the scooter in a poorly
ventilated room or covering it
with a tarp, while it is still wet,
will allow water and humidity 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 scooter for several
months:
1. Follow all the instructions in the
“Care” section of this chapter.
2. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.3. Perform the following steps to pro-
tect the cylinder, piston rings, etc.
from corrosion.
a. Remove the spark plug cap
and spark plug.
b. Pour a teaspoonful of engine oil
into the spark plug bore.
c. Install the spark plug cap onto
the spark plug, and then place
the spark plug 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 wall with oil.)
e. Remove the spark plug cap
from the spark plug, and then
install the spark plug and the
spark plug cap.
WARNING
EWA10950
To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turningthe engine over.

SPECIFICATIONS
8-1
8
Dimensions:Overall length:
2175 mm (85.6 in)
Overall width:
785 mm (30.9 in)
Overall height:
1460 mm (57.5 in)
Seat height:
790 mm (31.1 in)
Wheelbase:
1470 mm (57.9 in)
Ground clearance:
165 mm (6.50 in)
Minimum turning radius:
2400 mm (94.5 in)Weight:With oil and fuel:
173.0 kg (381 lb)Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
249.8 cm³
Bore × stroke:
69.0 × 66.8 mm (2.72 × 2.63 in)
Compression ratio:
10.00 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Type:
SAE10W30, SAE10W40, SAE15W40,
SAE20W40 or SAE20W50
Recommended engine oil grade:
API service SG type or higher, JASO
standard MA
Engine oil quantity:
Periodic oil change:
1.20 L (1.27 US qt) (1.06 Imp.qt)Final transmission oil:Type:
SAE10W30 type SE motor oil
Quantity:
0.25 L (0.26 US qt) (0.22 Imp.qt)Cooling system:Coolant reservoir capacity (up to the
maximum level mark):
0.20 L (0.21 US qt) (0.18 Imp.qt)
Radiator capacity (including all routes):
1.02 L (1.08 US qt) (0.90 Imp.qt)
Air filter:Air filter element:
Oil-coated paper elementFuel:Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity:
10.5 L (2.77 US gal) (2.31 Imp.gal)
Fuel reserve amount:
2.7 L (0.72 US gal) (0.60 Imp.gal)Fuel injection:Throttle body:
Manufacturer:
AISAN
Type/quantity:
EFI / 1Spark plug (s):Manufacturer/model:
NGK/DPR8EA-9
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)Clutch:Clutch type:
Dry, centrifugal automaticTransmission:Primary reduction system:
Helical gear
Primary reduction ratio:
40/15 (2.666)
Secondary reduction system:
Helical gear
Secondary reduction ratio:
42/14 (3.000)
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40

SPECIFICATIONS
8-3
8
Front turn signal light:
12 V, 10.0 W × 2
Rear turn signal light:
12 V, 10.0 W × 2
Auxiliary light:
12 V, 5.0 W × 2
License plate light:
12 V, 5.0 W × 1
Meter lighting:
LED
High beam indicator light:
LED
Turn signal indicator light:
LED x 2
Fuel level warning light:
LED
Engine trouble warning light:
LED
Immobilizer system indicator light:
LEDFuses:Main fuse:
30.0 A
Headlight fuse:
15.0 A
Signaling system fuse:
15.0 A
Ignition fuse:
10.0 A
Radiator fan fuse:
5.0 A
ECU fuse:
5.0 ABackup fuse:
5.0 A

INDEX
AAcceleration and deceleration ................ 5-2
Air filter and V-belt case air filter
elements ............................................. 6-11
Auxiliary light bulb, replacing ................ 6-27BBattery .................................................. 6-21
Brake fluid, changing ............................ 6-17
Brake fluid level, checking .................... 6-16
Brake lever, front .................................... 3-7
Brake lever, rear ..................................... 3-8
Brake levers, lubricating ....................... 6-18
Braking ................................................... 5-2CCables, checking and lubricating .......... 6-18
Care ........................................................ 7-1
Catalytic converter .................................. 3-9
Centerstand and sidestand,
checking and lubricating ..................... 6-19
Coolant ................................................. 6-10
Coolant temperature gauge .................... 3-3
Cowlings and panels,
removing and installing......................... 6-5DDimmer switch ........................................ 3-7
Display, multi-function ............................ 3-3EEngine break-in ...................................... 5-3
Engine oil ................................................ 6-7
Engine trouble warning light ................... 3-2FFinal transmission oil .............................. 6-9
Front and rear brake lever free play ..... 6-15
Front and rear brake pads, checking .... 6-16Front fork, checking...............................6-19
Fuel ......................................................... 3-8
Fuel consumption, tips for reducing ........ 5-3
Fuel gauge .............................................. 3-3
Fuel tank cap........................................... 3-8
Fuses, replacing .................................... 6-22
HHandlebar switches ................................. 3-6
Headlight bulb, replacing....................... 6-23
High beam indicator light......................... 3-2
Horn switch ............................................. 3-7IIdentification numbers ............................. 9-1
Ignition circuit cut-off system ................. 3-13
Indicator and warning lights .................... 3-2KKey identification number ........................ 9-1LLicense plate light bulb, replacing ......... 6-27
Luggage hook ....................................... 3-12MMain switch/steering lock ........................ 3-1
Model label .............................................. 9-2PParking ....................................................5-4
Part locations .......................................... 2-1
Periodic maintenance and lubrication
chart ......................................................6-2
Pre-operation check list........................... 4-2SSafe-riding points .................................... 1-4
Safety information ...................................1-1
Seat ....................................................... 3-10Shock absorber assemblies,
adjusting ............................................. 3-12
Sidestand .............................................. 3-13
Spark plug, checking .............................. 6-6
Specifications.......................................... 8-1
Speedometer .......................................... 3-2
Starting off .............................................. 5-2
Starting the engine.................................. 5-1
Start switch ............................................. 3-7
Steering, checking ................................ 6-20
Storage ................................................... 7-3
Storage compartment .................. 3-10, 3-11
TTail/brake light bulb or rear turn signal
light bulb, replacing............................. 6-26
Throttle cable free play, checking ......... 6-12
Throttle grip and cable,
checking and lubricating ..................... 6-18
Tires ...................................................... 6-13
Tool kit .................................................... 6-1
Troubleshooting .................................... 6-27
Troubleshooting charts ......................... 6-28
Turn signal indicator lights ...................... 3-2
Turn signal light bulb (front),
replacing ............................................. 6-25
Turn signal switch ................................... 3-7VValve clearance .................................... 6-13
Vehicle identification number .................. 9-1WWheel bearings, checking..................... 6-21
Wheels .................................................. 6-15