engine YAMAHA XMAX 125 2008 Service Manual

NOTE:
Consult a Yamaha dealer for advice
on what 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.
ECA10820
CAUTION:
●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 seve-
ral 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
protect 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 sparking
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.EWA10950
s s
WARNING
To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turning
the engine over.
SCOOTER CARE AND STORAGE
7-3
7
1B9-F8199-E2.qxd 13/11/07 12:18 Página 78

Dimensions:Overall length:
2210 mm (87.0 in)
Overall width:
790 mm (31.1 in)
Overall height:
1380 mm (54.3 in)
Seat height:
785 mm (30.9 in)
Wheelbase:
1545 mm (60.8 in)
Ground clearance:
112 mm (4.44 in)
Minimum turning radius:
3650 mm (143.7 in)
Weight:With oil and fuel:
166 kg (366 lb)
Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
124.6 cm
3
Bore x stroke:
52.0 x 58.6 mm (2.05 x 2.31 in)
Compression ratio:
11.20 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Type:
SAE 10W-30, SAE 10W-40, SAE 15W-40,
SAE 20W-40 or SAE 20W-50
Recommended engine oil grade:
API service SG type or higher, JASO
standard MA
Engine oil quantity:
Without oil filter cartridge replacement:
1.40 L (1.48 US qt) (1.23 Imp.qt)
With oil filter element replacement:
1.50 L (1.59 US qt) (1.32 Imp.qt)
Final transmission oil:Type:
SAE 10W-30 type SE motor oil
Quantity:
0.21 L (0.22 US qt) (0.18 Imp.qt)
Cooling system:Coolant reservoir capacity (up to the
maximum level mark):
0.26 L (0.27 US qt) (0.23 Imp.qt)Radiator capacity (including all routes):
1.40 L (1.48 US qt) (1.23 Imp.qt)
Air filter:Air filter element:
Oil-coated paper element
Fuel:Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity:
12.5 L (3.30 US gal) (2.75 Imp.gal)
Fuel reserve amount:
2 L (0.53 US gal) (0.44 Imp.gal)
Throttle body:Type/quantity:
EFI (1B9) / 1
Manufacturer:
AISAN
Spark plug (s):Manufacturer/model:
NGK/ CPR 9EA-9
Spark plug gap:
0.8-0.9 mm (0.031-0.035 in)
Clutch:Clutch type:
Dry, centrifugal automatic
Transmission:Primary reduction system:
Helical gear
Primary reduction ratio:
41/14 (2.929)
Secondary reduction system:
Helical gear
Secondary reduction ratio:
44/13 (3.384)
SPECIFICATIONS
8-1
8
1B9-F8199-E2.qxd 13/11/07 12:18 Página 80

Voltage, capacity:
12 V, 8.0 Ah
Headlight:Bulb type:
Halogen bulb
Bulb voltage, wattage x quantity:
Headlight:
12 V, 35 W/35.0 W x 2
Tail/brake light:
12 V, 21.0 W/5.0 W x 2
Front turn signal light:
12 V, 10.0 W x 2
Rear turn signal light:
12 V, 10.0 W x 2
Auxiliary light:
12 V, 5.0 W x 2
License plate light:
12 V, 5.0 W x 1
Meter lighting:
LED
High beam indicator light:
LED x 1
Turn signal indicator light:
LED x 2
Engine trouble warning light:
LED x 1
Immobilizer system indicator light:
LED x 1
Fuses:Main fuse:
30.0 A
Headlight fuse:
15.0 ASignaling system fuse:
15.0 A
Ignition fuse:
10.0 A
Radiator fan fuse:
10.0 A
ECU (Electronic Control Unit) fuse:
5.0 A
Backup fuse:
5.0 A
SPECIFICATIONS
8-3
8
1B9-F8199-E2.qxd 13/11/07 12:18 Página 82

INDEX
AAcceleration and deceleration ...................5-2
Air filter and V-belt case air filter
elements ................................................6-15
Anti-theft alarm (optional) ..........................3-9
Auxiliary light bulb, replacing ...................6-32
BBattery......................................................6-26
Brake fluid level, checking .......................6-21
Brake fluid, changing ...............................6-22
Brake lever, front ......................................3-10
Brake lever, rear .......................................3-11
Brake levers, lubricating ..........................6-23
Braking .......................................................5-3
CCables, checking and lubricating ............6-23
Care............................................................7-1
Catalytic converters .................................3-13
Centerstand and sidestand, checking
and lubricating .......................................6-24
Coolant.....................................................6-14
Coolant temperature gauge .......................3-5
Cowlings and panel, removing and
installing ...................................................6-7
DDimmer switch ...........................................3-9
Display, multi-function ...............................3-6
EEngine break-in ..........................................5-4
Engine oil .................................................6-10
Engine trouble warning light ......................3-3
FFinal transmission oil ...............................6-13
Front and rear brake lever free play.........6-20Front and rear brake pads, checking ......6-21
Front fork, checking .................................6-24
Fuel ..........................................................3-12
Fuel consumption, tips for reducing ..........5-3
Fuel gauge .................................................3-5
Fuel level warning light ..............................3-3
Fuel tank cap ...........................................3-11
Fuses, replacing .......................................6-27
HHandlebar switches ...................................3-9
Hazard switch ............................................3-9
Headlight bulb, replacing .........................6-29
High beam indicator light...........................3-3
Horn switch ................................................3-9
I
Identification numbers ...............................9-1
Ignition circuit cut-off system ..................3-18
Immobilizer system ....................................3-1
Immobilizer system indicator light .............3-3
Indicator and warning lights ......................3-3
KKey identification number ..........................9-1
LLicense plate light bulb, replacing ...........6-32
MMain switch/steering lock ..........................3-2
Matte color, caution ...................................7-4
Model label ................................................9-2
PParking .......................................................5-4
Part locations .............................................2-1
Periodic maintenance and lubrication
chart .........................................................6-3
Pre-operation check list .............................4-2
SSafe-riding points.......................................1-1
Safety information ......................................1-1
Seat ..........................................................3-14
Self-diagnosis device.................................3-4
Shock absorber assemblies, adjusting....3-17
Sidestand .................................................3-18
Spark plug, checking .................................6-9
Specifications.............................................8-1
Speedometer .............................................3-4
Start switch ................................................3-9
Starting off .................................................5-2
Starting the engine.....................................5-1
Steering, checking ...................................6-25
Storage.......................................................7-3
Storage compartment (front) ...................3-15
Storage compartment (rear) .....................3-16
Storage compartments ............................3-14
TTail/brake light bulb or rear turn signal
light bulb, replacing ...............................6-30
Throttle cable free play, adjusting ............6-17
Throttle grip and cable, checking and
lubricating ..............................................6-23
Tires .........................................................6-18
Tool kit ........................................................6-1
Troubleshooting .......................................6-32
Troubleshooting charts ............................6-33
Turn signal indicator lights .........................3-3
Turn signal light bulb (front), replacing ....6-30
Turn signal switch ......................................3-9
VValve clearance ........................................6-17
Vehicle identification number .....................9-1
1B9-F8199-E2.qxd 13/11/07 12:18 Página 85