2014 YAMAHA XMAX 125 check engine

PERIODIC MAINTENANCE AND ADJUSTMENT
6-18
6
EAU21385
Checking the throttle grip free
playThe throttle grip free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
inner edge of the throttle grip. Periodi-
cally check the throttle grip free play
and, if necessary, have a Yamaha deal-
er adjust it.
EAU21402
Valve clearanceThe valve clearance changes with use,
resulting in improper air-fuel mixture
and/or engine noise. To prevent this
from occurring, the valve clearance
must be adjusted by a Yamaha dealer
at the intervals specified in the periodic
maintenance and lubrication chart.
EAU21877
TiresTires are the only contact between the
vehicle and the road. Safety in all con-
ditions of riding depends on a relatively
small area of road contact. Therefore, it
is essential to maintain the tires in good
condition at all times and replace them
at the appropriate time with the speci-
fied tires.
Tire air pressure
The tire air pressure should be
checked and, if necessary, adjusted
before each ride.
1. Throttle grip free play
ZAUM0053
U2DME1E0.book Page 18 Wednesday, October 23, 2013 1:37 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-34
6
EAU42706
Troubleshooting chartsStarting problems or poor engine performance
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the battery.
Supply fuel.
The engine does not start.
Check the battery.
Operate the electric starter.4. Compression
There is compression.
There is no compression.
The engine does not start.
Have a Yamaha dealer check the vehicle.Have a Yamaha dealer check the vehicle.
Remove the spark plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Check the compression.
Operate the electric starter.2. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.
DryWet
Operate the electric starter.
Check the battery lead connections,
and have a Yamaha dealer charge
the battery if necessary.
The engine does not start.
Check the ignition.
U2DME1E0.book Page 34 Wednesday, October 23, 2013 1:37 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-35
6Engine overheating
WARNING
EWAT1041
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.
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 hissing sound has stopped, press down on the cap
while turning it counterclockwise, and then remove the cap.TIPIf coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool-
ant as 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 TIP.)
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.
U2DME1E0.book Page 35 Wednesday, October 23, 2013 1:37 PM

SCOOTER CARE AND STORAGE
7-4
7
EAU36564
StorageShort-term
Always store your scooter in a cool, dry
place and, if necessary, protect it
against dust with a porous cover. Be
sure the engine and the exhaust sys-
tem are cool before covering the
scooter.NOTICE
ECA10821
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
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 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! To
prevent damage or injury
from sparking, make sure to
ground the spark plug elec-
trodes while turning the en-
gine over.
[EWA10952]
4. Lubricate all control cables and
the pivoting points of all levers and
pedals as well as of the side-
stand/centerstand.
5. Check and, if necessary, correct
the tire air pressure, and then lift
the scooter so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
6. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
7. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively cold or warm place [less
than 0 °C (30 °F) or more than 30
°C (90 °F)]. For more information
on storing the battery, see page
6-27.TIPMake any necessary repairs before
storing the scooter.
U2DME1E0.book Page 4 Wednesday, October 23, 2013 1:37 PM

10-1
10
INDEX
AABS (for ABS models) .......................... 3-16
ABS warning light (for ABS models) ....... 3-4
Acceleration and deceleration ................ 5-3
Air filter and V-belt case air filter
elements ............................................. 6-16
Anti-theft alarm (optional) ..................... 3-13
Auxiliary light ........................................ 6-33BBattery .................................................. 6-27
Brake fluid, changing............................ 6-24
Brake fluid level, checking.................... 6-22
Brake lever, front .................................. 3-15
Brake lever, rear ................................... 3-15
Brake levers, lubricating ....................... 6-25
Braking ................................................... 5-3CCables, checking and lubricating ......... 6-24
Care ........................................................ 7-1
Catalytic converters.............................. 3-19
Centerstand and sidestand, checking
and lubricating ................................... 6-25
Coolant ................................................. 6-15DDimmer switch...................................... 3-14EEngine break-in ...................................... 5-4
Engine oil .............................................. 6-12
Engine trouble warning light ................... 3-4FFinal transmission oil ............................ 6-14
Front and rear brake lever free play,
checking ............................................. 6-21
Front and rear brake pads, checking ... 6-21Front fork, checking ............................. 6-26
Front turn signal light ........................... 6-31
Fuel ...................................................... 3-17
Fuel consumption, tips for reducing ...... 5-4
Fuel level warning light........................... 3-4
Fuel tank cap........................................ 3-17
Fuses, replacing ................................... 6-29
HHandlebar switches ............................. 3-14
Hazard switch ...................................... 3-14
Headlight bulb, replacing ..................... 6-30
High beam indicator light ....................... 3-4
Horn switch .......................................... 3-14IIdentification numbers ........................... 9-1
Ignition circuit cut-off system .............. 3-23
Immobilizer system ................................ 3-1
Immobilizer system indicator light ......... 3-5
Indicator lights and warning lights ......... 3-3LLicense plate light bulb, replacing ....... 6-32MMain switch/steering lock ...................... 3-2
Maintenance and lubrication, periodic... 6-4
Maintenance, emission control
system ................................................. 6-3
Matte color, caution ............................... 7-1
Model label............................................. 9-1
Multi-function meter unit ........................ 3-5PPanels, removing and installing ............. 6-8
Parking ................................................... 5-5
Part locations ......................................... 2-1
Pass switch .......................................... 3-14
SSafe-riding points ................................... 1-5
Safety information................................... 1-1
Seat....................................................... 3-19
Shock absorber assemblies,
adjusting ............................................. 3-21
Sidestand.............................................. 3-22
Spark plug, checking ............................ 6-10
Specifications ......................................... 8-1
Starting off .............................................. 5-2
Starting the engine ................................. 5-1
Start switch ........................................... 3-14
Steering, checking ................................ 6-27
Storage ................................................... 7-4
Storage compartments ......................... 3-20TTail/brake light ...................................... 6-31
Throttle grip and cable, checking and
lubricating ........................................... 6-24
Throttle grip free play, checking ........... 6-18
Tires ...................................................... 6-18
Tool kit .................................................... 6-2
Troubleshooting .................................... 6-33
Troubleshooting charts ......................... 6-34
Turn signal indicator lights...................... 3-3
Turn signal light bulb (rear),
replacing ............................................. 6-31
Turn signal switch ................................. 3-14VValve clearance..................................... 6-18
Vehicle identification number ................. 9-1WWheel bearings, checking .................... 6-27
Wheels .................................................. 6-20
U2DME1E0.book Page 1 Wednesday, October 23, 2013 1:37 PM