2012 YAMAHA XMAX 125 check engine light

SAFETY INFORMATION .....................1-1
Further safe-riding points .................1-5
DESCRIPTION.....................................2-1
Left view ...........................................2-1
Right view .........................................2-3
Controls and instruments .................2-5
INSTRUMENT AND CONTROL
FUNCTIONS ........................................3-1
Immobilizer system ...........................3-1
Main switch/steering lock .................3-2
Indicator and warning lights .............3-4
Turn signal indicator lights ...............3-4
High beam indicator light ................3-4
Engine trouble warning light ............3-4
ABS warning light
(for ABS models) ...........................3-4
Immobilizer system indicator light ....3-5
Speedometer ....................................3-5
Tachometer .......................................3-6
Multi-function display .......................3-6
Anti-theft alarm (optional) ...............3-11
Handlebar switches ........................3-11
Pass switch ....................................3-12
Dimmer switch ...............................3-12
Turn signal switch ..........................3-12
Horn switch ...................................3-12
Start switch ....................................3-12
Hazard switch ................................3-12
Front brake lever.............................3-12Rear brake lever..............................3-13
ABS (for ABS models) ....................3-13
Fuel tank cap ..................................3-14
Fuel .................................................3-15
Catalytic converters ........................3-16
Securing bracket ............................3-17
Seat.................................................3-17
Storage compartments ...................3-18
Adjusting the shock absorber
assemblies...................................3-19
Travel trunk .....................................3-20
Sidestand ........................................3-22
Ignition circuit cut-off system .........3-22
FOR YOUR SAFETY –
PRE-OPERATION CHECKS ...............4-1
OPERATION AND IMPORTANT
RIDING POINTS ..................................5-1
Starting the engine ...........................5-1
Starting off ........................................5-2
Acceleration and deceleration ..........5-3
Braking..............................................5-3
Tips for reducing fuel
consumption..................................5-4
Engine break-in.................................5-4
Parking ..............................................5-5
PERIODIC MAINTENANCE AND
ADJUSTMENT ....................................6-1
Owner’s tool kit .................................6-2Periodic maintenance chart for the
emission control system ...............6-3
General maintenance and lubrication
chart ..............................................6-4
Removing and installing the cowling
and panel.......................................6-8
Checking the spark plug ..................6-9
Engine oil ........................................6-10
Final transmission oil ......................6-13
Coolant ...........................................6-14
Air filter and V-belt case air filter
elements ......................................6-16
Adjusting the throttle cable free
play ..............................................6-17
Valve clearance ...............................6-18
Tires ................................................6-18
Cast wheels ....................................6-20
Checking the front and rear brake
lever free play ..............................6-20
Checking the front and rear brake
pads.............................................6-21
Checking the brake fluid level ........6-22
Changing the brake fluid ................6-23
Checking and lubricating the
throttle grip and cable .................6-23
Lubricating the front and rear
brake levers .................................6-24
Checking and lubricating the
centerstand and sidestand .........6-24
Checking the front fork ...................6-25
Checking the steering.....................6-26
TABLE OF CONTENTS

EAU11004
Indicator and warning lights
1. Turn signal indicator lights “ ” and “ ”
2. High beam indicator light “ ”
3. Immobilizer system indicator light
4. Engine trouble warning light “ ”
5. Anti-lock Brake System (ABS) warning light
“ ” (for ABS models)
EAU11030
Turn signal indicator lights “ ”
and “ ”
The corresponding indicator light flas-
hes when the turn signal switch is
pushed to the left or right.
EAU11080
High beam indicator light “ ”
This indicator light comes on when
the high beam of the headlight is swit-
ched on.
EAU43023
Engine trouble warning light “ ”
This warning light comes on if an
electrical circuit monitoring the engine
is not working correctly. If this occurs,
have a Yamaha dealer check the self-
diagnosis system.
The electrical circuit of the warning
light can be checked by turning the
key to “ON”. The warning light should
come on for a few seconds, and then
go off.
If the warning light does not come on
initially when the key is turned to
“ON”, or if the warning light remains
on, have a Yamaha dealer check the
electrical circuit.
TIP
This warning light will come on when
the key is turned to “ON” and the start
switch is pushed, but this does not
indicate a malfunction.
EAU43032
ABS warning light “ ” (for ABS
models)
ECA10831
If the ABS warning light comes on
or flashes while riding, the ABS
may not work correctly. If this
occurs, have a Yamaha dealer
check the electrical circuit.
See page 3-13 for an explanation of
the ABS.
The electrical circuit of the warning
light can be checked by turning the
key to “ON”. The warning light should
come on for a few seconds, and then
go off.
If the warning light does not come on
initially when the key is turned to
“ON”, or if the warning light remains
on, have a Yamaha dealer check the
electrical circuit.
EWA11350
When the ABS warning light comes
on or flashes while riding, the brake
system reverts to conventional bra-
king. Therefore, be careful not to
WARNING
NOTICE
ABS
ABS
INSTRUMENT AND CONTROL FUNCTIONS
3-4
3

cause the wheel to lock during
emergency braking.
TIP
The ABS warning light may come on
while accelerating the engine with the
scooter on its centerstand, but this
does not indicate a malfunction.
EAU38624
Immobilizer system indicator light
The electrical circuit of the indicator
light can be checked by turning the
key to “ON”. The indicator light
should come on for a few seconds,
and then go off.
If the indicator light does not come on
initially when the key is turned to
“ON”, or if the indicator light remains
on, have a Yamaha dealer check the
electrical circuit.
When the key is turned to “OFF” and
30 seconds have passed, the indica-
tor light will start flashing indicating
the immobilizer system is enabled.
After 24 hours have passed, the indi-
cator light will stop flashing, however
the immobilizer system is still ena-bled.
The self-diagnosis device also
detects problems in the immobilizer
system circuits. (See page 3-6 for an
explanation of the self-diagnosis
device.)
EAUS1860
Speedometer
1. Speedometer
UK ONLY
1. Speedometer
The speedometer shows the riding
speed.
INSTRUMENT AND CONTROL FUNCTIONS
3-5
3

If the engine oil is changed before the
oil change indicator comes on (i.e.
before the periodic oil change interval
has been reached), the indicator must
be reset after the oil change for the
next periodic oil change to be indica-
ted at the correct time. (See page
6-10).
The electrical circuit of the indicator
can be checked according to the
following procedure.
1. Turn the key to “ON”.
2. Check that the indicator comes
on for a few seconds and then
goes off.
3. If the indicator does not come on,
have a Yamaha dealer check the
electrical circuit.
V-belt replacement indicator “V-
BELT”
This indicator flashes every 18000 km
(10500 mi) when the V-belt needs to
be replaced.
The electrical circuit of the indicator
can be checked according to the
following procedure.
1. Turn the key to “ON”.2. Check that the indicator comes
on for a few seconds and then
goes off.
3. If the indicator does not come on,
have a Yamaha dealer check the
electrical circuit.
Self-diagnosis device
This model is equipped with a self-
diagnosis device for various electrical
circuits.
If a problem is detected in any of tho-
se circuits, the multi-function display
will indicate an error code.
If the multi-function display indicates
such an error code, note the code
number, and then have a Yamaha
dealer check the vehicle.
ECA11790
If the multi-function display indica-
tes an error code, the vehicle
should be checked as soon as pos-
sible in order to avoid engine
damage.
The self-diagnosis device also
detects problems in the immobilizer
system circuits.If a problem is detected in the immo-
bilizer system circuits, the immobilizer
system indicator light will flash and
the multi-function display will indicate
an error code when the key is turned
to “ON”.
TIP
If the multi-function display indicates
error code 52, this could be caused
by transponder interference. If this
error appears, try the following.
1. Error code display
1. Use the code re-registering key
to start the engine.
TIP
Make sure there are no other immobi-
NOTICE
INSTRUMENT AND CONTROL FUNCTIONS
3-9
3

EAU15303
Sidestand
1. Sidestand switch
The sidestand is located on the left
side of the frame. Raise the sidestand
or lower it with your foot while holding
the vehicle upright.
TIP
The built-in sidestand switch is part of
the ignition circuit cut-off system,
which cuts the ignition in certain
situations. (See page 3-22 for an
explanation of the ignition circuit cut-
off system.)
EWA10240
The vehicle must not be ridden with
the sidestand down, or if the sides-
tand cannot be properly moved up
(or does not stay up), otherwise the
sidestand could contact the ground
and distract the operator, resulting
in a possible loss of control. Yama-
ha’s ignition circuit cut-off system
has been designed to assist the
operator in fulfilling the responsibi-
lity of raising the sidestand before
starting off. Therefore, check this
system regularly as described
below and have a Yamaha dealer
repair it if it does not function pro-
perly.
EAU45051
Ignition circuit cut-off
system
The ignition circuit cut-off system
(comprising the sidestand switch and
brake light switches) has the following
functions.
It prevents starting when the
sidestand is up, but neither brake
is applied.
It prevents starting when either
brake is applied, but the sides-
tand is still down.
It cuts the running engine when
the sidestand is moved down.
Periodically check the operation of
the ignition circuit cut-off system
according to the following procedure.
WARNING
ZAUM0648
1
INSTRUMENT AND CONTROL FUNCTIONS
3-22
3

ECA15022
If a warning light, indicator light or
indicator does not go off, see pages
3-4 or 3-6 for the corresponding war-
ning light, indicator light or indicator
circuit check.
2. Close the throttle completely.
3. Start the engine by pushing the
start switch while applying the
front or rear brake. NOTICE: For
maximum engine life, never
accelerate hard when the engi-
ne is cold!
[ECA11041]
1. Rear brake lever
2. Front brake lever
3. Start switch
3. If the engine does not start, rele-
ase the start switch, wait a few
seconds, and then try again.
Each starting attempt should be
as short as possible to preserve
the battery. Do not crank the
engine more than 10 seconds on
any one attempt.EAU45091
Starting off
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.
1. Grab bar
1. Grab bar
NOTICE
OPERATION AND IMPORTANT RIDING POINTS
5-2
5
4.

For the Sport version, the backrest is
not shown for better understanding.
To install the panel
1. Place the panel in the original
position, and then install the
screws.
2. Close the seat.
EAU19622
Checking the spark plug
The spark plug is an important engine
component, which should be chec-
ked periodically, preferably by a
Yamaha dealer. Since heat and depo-
sits will cause any spark plug to
slowly erode, it should be removed
and checked in accordance with the
periodic maintenance and lubrication
chart. In addition, the condition of the
spark plug can reveal the condition of
the engine.
The porcelain insulator around the
center 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 different color, the engine
could be operating improperly. 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 repla-
ced.Before installing a spark plug, the
spark plug gap should be measured
with a wire thickness gauge and, if
necessary, adjusted to specification.
1. Spark plug gap
Clean the surface of the spark plug
gasket and its mating surface, and
then wipe off any grime from the
spark plug threads.
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
1
ZAUM0037
Specified spark plug:
NGK/CPR9EA-9
PERIODIC MAINTENANCE AND ADJUSTMENT
6-9
6

TIP
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. Howe-
ver, the spark plug should be tighte-
ned to the specified torque as soon
as possible.
EAUS1701
Engine oil
The engine oil level should be chec-
ked before each ride. In addition, the
oil must be changed at the intervals
specified 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 centers-
tand. A slight tilt to the side can
result in a 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
settles, remove the oil filler cap,
wipe the dipstick clean, insert it
back into the oil filler hole (wit-
hout screwing it in), and then
remove it again to check the oil
level.
TIP
The engine oil should be between the
minimum and maximum level marks.
1. Engine oil filler cap
2. Maximum level mark
3. Minimum level mark
4. If the engine oil is below the mini-
mum level mark, add sufficient oil
of the recommended type to rai-
se 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 (with or
without oil filter element
replacement)
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.
1
3
2
1
ZAUM0685
Tightening torque:
Spark plug:

PERIODIC MAINTENANCE AND ADJUSTMENT
6-10
6