2005 YAMAHA XMAX 250 engine

ECA11400
CAUTION
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,
as well as to the exhaust system.
Your Yamaha engine has been desig-
ned to use regular unleaded gasoline
with a research octane number of 91
or higher. If knocking (or pinging)
occurs, use a gasoline of a different
brand or premium unleaded fuel. Use
of unleaded fuel will extend spark plug
life and reduce maintenance costs.
EAU13431
Catalytic converter
This model is equipped with a cataly-
tic converter in the exhaust system.
EWA10860
s s
WARNING
The exhaust system is hot after
operation. Make sure that the
exhaust system has cooled down
before doing any maintenance
work.
ECA10700
CAUTION
The following precautions must be
observed to prevent a fire hazard or
other damages.
Use only unleaded gasoline.
The use of leaded gasoline will
cause unrepairable damage to
the catalytic converter.
Never park the vehicle near
possible fire hazards such as
grass or other materials that
easily burn.
Do not allow the engine to idle
too long.
EAU13931
Seat
To open the seat
1. Place the scooter on the centers-
tand.
2. Insert the key into the main
switch, and then turn it counter-
clockwise.
NOTE:
Do not push inward when turning the
key.
3. Fold the seat up.
To close the seat
1. Fold the seat down, and then
push it down to lock it in place.
2. Remove the key from the main
switch if the scooter will be left
unattended.
NOTE:
Make sure that the seat is properly
secured before riding.
3
INSTRUMENT AND CONTROL FUNCTIONS
3-10
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4
PRE-OPERATION CHECKS
4-2
EAU15603
Pre-operation check list
ITEM CHECKS PAGE
• Check fuel level in fuel tank.
Fuel• Refuel if necessary.3-9
• Check fuel line for leakage.
• Check oil level in engine.
Engine oil• If necessary, add recommended oil to specified level. 6-7
• Check vehicle for oil leakage.
Final transmission oil• Check vehicle for oil leakage. 6-8
• Check coolant level in reservoir.
Coolant• If necessary, add recommended coolant to specified level. 6-9
• Check cooling system for leakage.
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
Front brake• Replace if necessary. 3-8, 6-14
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
Rear brake• Replace if necessary. 3-8, 6-14
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
• Make sure that operation is smooth.
Throttle grip• Check cable free play.
6-12
• If necessary, have Yamaha dealer adjust cable free play and lubricate cable
and grip housing.
Control cables• Make sure that operation is smooth.
• Lubricate if necessary. —
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EAU15970
EWA11250
s s
WARNING
Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer
regarding any control or func-
tion that you do not thoroughly
understand.
Never start the engine or ope-
rate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of cons-
ciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.
For safety, always start the
engine with the centerstand
down.
When the centerstand is down
and the engine is idling, keep
your hands and feet away from
the rear wheel.
EAUM1210
Starting a cold engineECA10250
CAUTION
See page 5-3 for engine break-in
instructions prior to operating the
vehicle for the first time.
1. Turn the key to “f”.
2. Close the throttle completely.
3. Start the engine by pushing the
start switch while applying the
front or rear brake.
NOTE:
If the engine fails to start, release the
start switch, wait a few seconds, and
then try again. Each starting attempt
should be as short as possible to pre-
serve the battery. Do not crank theengine more than 10 seconds on any
one attempt.
ECA11040
CAUTION
For maximum engine life, never
accelerate hard when the engine is
cold!
EAU16760
Starting off
NOTE:
Before starting off, allow the engine to
warm up.
1. Grab bar
1
5
OPERATION AND IMPORTANT RIDING POINTS
5-1
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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 centers-
tand.
2. Sit astride the seat, and then
adjust 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 ope-
ning and closing the throttle. To incre-ase the speed, turn the throttle grip in
direction (a). To reduce the speed,
turn the throttle grip in direction (b).
EAU16791
Braking
1. Close the throttle completely.
2. Apply both front and rear brakes
simultaneously while gradually
increasing the pressure.
EWA10300
s s
WARNING
Avoid braking hard or suddenly
(especially when leaning over
to one side), otherwise the sco-
oter may skid or overturn.
Railroad crossings, streetcar
rails, iron plates on road cons-
truction sites, and manholecovers become extremely slip-
pery when wet. Therefore, slow
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 bra-
king downhill can be very diffi-
cult.
EAU16820
Tips for reducing fuel
consumption
Fuel consumption depends largely on
your riding style. Consider the follo-
wing 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 cros-
sings).
5
OPERATION AND IMPORTANT RIDING POINTS
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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 following 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 them-
selves to the correct operating clea-
rances. During this period, prolonged
full-throttle operation or any condition
that might result in engine overhea-
ting 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.
ECA11660
CAUTION
After 1000 km (600 mi) of operation,
be sure to replace the engine oil
and final transmission oil.
1600 km (1000 mi) and beyond
The vehicle can now be operated nor-
mally.
ECA10270
CAUTION
If any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealer
check the vehicle.
EAU17212
Parking
When parking, stop the engine, and
then remove the key from the main
switch.
EWA10310
s s
WARNING
Since the engine and exhaust
system can become very hot,
park in a place where pedes-
trians or children are not likely
to touch them.
Do not park on a slope or on
soft ground, otherwise the
vehicle may overturn.
ECA10380
CAUTION
Never park in an area where there
are fire hazards such as grass or
other flammable materials.
5
OPERATION AND IMPORTANT RIDING POINTS
5-3
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EAU17280
Safety is an obligation of the owner.
Periodic inspection, adjustment and
lubrication will keep your vehicle in
the safest and most efficient condi-
tion possible. The most important
points of inspection, adjustment, and
lubrication are explained on the follo-
wing pages.
The intervals given in the periodic
maintenance and lubrication chart
should be simply considered as a
general guide under normal riding
conditions. However, DEPENDING
ON THE WEATHER, TERRAIN, GEO-
GRAPHICAL LOCATION, AND INDIVI-
DUAL USE, THE MAINTENANCE
INTERVALS MAY NEED TO BE
SHORTENED.
EWA10320
s s
WARNING
If you are not familiar with mainte-
nance work, have a Yamaha dealer
do it for you.
EWA10330
s s
WARNING
This scooter is designed for use on
paved roads only. If this scooter is
operated in abnormally dusty,
muddy or wet conditions, the air fil-
ter element should be cleaned or
replaced more frequently, otherwi-
se rapid engine wear may result.
Consult a Yamaha dealer for proper
maintenance intervals.
EAU17380
Owner’s tool kit
1. Owner’s tool kit
The owner’s tool kit is located under
the seat. (See page 3-10.)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 pre-
ventive maintenance and minor
repairs. However, additional tools
such as a torque wrench may be
necessary to perform certain mainte-
nance work correctly.
NOTE:
If you do not have the tools or expe-
rience required for a particular job,
have a Yamaha dealer perform it for
you.
EWA10350
s s
WARNING
Modifications not approved by
Yamaha may cause loss of perfor-
mance and render the vehicle
unsafe for use. Consult a Yamaha
dealer before attempting any chan-
ges.
1
6
PERIODIC MAINTENANCE AND MINOR REPAIR
6-1
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ODOMETER READING (x 1000 Km) ANNUAL
CHECK
NoITEM CHECK OR MAINTENANCE JOB 1 10 20 30 40
8*Brake hose• Check for cracks or damage.√√√√ √• Replace. Every 4 years
9*Wheels• Check runout and for damage.√√√√
• Check tread depth and for damage.
10 *Tires• Replace if necessary.
√√√√ √
• Check air pressure.
• Correct if necessary.
11 *Wheel bearings• Check bearing for looseness or damage.√√√√
12 *Steering bearings• Check bearing play and steering for roughness.√√ √ √√• Lubricate with lithium-soap-based grease. Every 20000 km
13 *Chassis fasteners• Make sure that all nuts, bolts and screws are
√√√√ √
properly tightened.
14Sidestand, centerstand• Check operation.
• Lubricate.√√√√ √
15 *Sidestand switch• Check operation.√√ √ √√ √
16 *Front fork• Check operation and for oil leakage.√√√√
17 *Shock absorber
• Check operation and shock absorbers for oil leakage.√√√√
assemblies
18 *Carburetor• Adjust engine idling speed.√√ √ √√ √
• Change. (See page 3-6.)√When the oil change
19Engine oilindicator light comes on (every 3000 km)• Check oil level and vehicle for oil leakage. Every 3000 km√
20 *Engine oil strainer• Clean.√
21 *Cooling system• Check coolant level and vehicle for coolant leakage.√√√√ √
• Change. Every 3 years
6
PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU18712
Removing and installing
cowlings and panels
The cowlings and panels shown need
to be removed to perform some of the
maintenance jobs described in this
chapter. Refer to this section each
time a cowling or panel needs to be
removed and installed.
EAU18790
Cowling A
T
o remove the cowling
1. Screws
Cowling B
Screws
Remove the screws, and then take
the cowling off.
T
o install the cowling
Place the cowling in the original posi-
tion, and then install the screws.
EAUM1250
Panel A
T
o remove the panel
1. Open the storage compartment.
(See page 3-11.)
Screws
2. Remove the screw, and then take
the panel off.
T
o install the panel
1. Place the panel in the original
position, and then install the
screw.
2. Close the storage compartment.
EAUS1280
Checking the spark plug
The spark plug is an important engine
component, which is easy to check.
Since heat and deposits will cause any
spark plug to slowly erode, the spark
plug should be removed and checked
in accordance with the periodic main-
tenance and lubrication chart. In addi-
tion, the condition of the spark plug
can reveal the condition of the engine.
To remove the spark plug
1. Storage compartment
2. Screws
1. Open the seat. (See page 3-10.)
2. Remove the storage compart-
ment under the seat by removing
the bolts.
1
2
11
6
PERIODIC MAINTENANCE AND MINOR REPAIR
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