2004 YAMAHA TMAX check engine light

TABLE OF CONTENTS
SAFETY INFORMATION ............. 1-1
Further safe-riding points .......... 1-4
DESCRIPTION ............................. 2-1
Left view ..................................... 2-1
Right view................................... 2-2
Controls and instruments ........... 2-3
INSTRUMENT AND CONTROL
FUNCTIONS ................................ 3-1
Immobilizer system ................... 3-1
Main switch/steering lock .......... 3-2
Indicator and warning lights ...... 3-3
Speedometer ............................. 3-4
Tachometer ............................... 3-4
Multi-function display ................. 3-5
Anti-theft alarm (optional) .......... 3-8
Handlebar switches ................... 3-8
Front brake lever ..................... 3-10
Rear brake lever ...................... 3-10
Parking brake .......................... 3-10
Fuel tank cap ........................... 3-11
Fuel ......................................... 3-12
Catalytic converter .................. 3-12
Seat ......................................... 3-13
Adjusting the rider backrest ..... 3-13
Helmet holder .......................... 3-14
Storage compartments ............ 3-15Shock absorber ....................... 3-15
Sidestand ................................ 3-16
Ignition circuit cut-off system ... 3-16
PRE-OPERATION CHECKS ....... 4-1
Pre-operation check list ............ 4-2
OPERATION AND IMPORTANT
RIDING POINTS ........................... 5-1
Starting the engine .................... 5-1
Starting off ................................. 5-2
Acceleration and
deceleration ............................ 5-2
Braking ...................................... 5-2
Tips for reducing fuel
consumption ............................ 5-3
Engine break-in ......................... 5-4
Parking ...................................... 5-4
PERIODIC MAINTENANCE
AND MINOR REPAIR ................... 6-1
Owner’s tool kit ......................... 6-1
Periodic maintenance and
lubrication chart ....................... 6-3
Removing and installing
cowlings and panels ................ 6-6
Checking the spark plugs .......... 6-9Engine oil and oil filter
cartridge ................................ 6-10
Chain drive oil ......................... 6-13
Coolant .................................... 6-14
Cleaning the air filter
element ................................. 6-16
Adjusting the engine idling
speed .................................... 6-17
Adjusting the throttle cable free
play ....................................... 6-18
Adjusting the valve
clearance .............................. 6-18
Tires ........................................ 6-18
Cast wheels ............................ 6-20
Front and rear brake lever
free play ................................ 6-21
Adjusting the parking brake
cable ..................................... 6-21
Checking the front and rear
brake pads ............................ 6-22
Checking the brake fluid
level ....................................... 6-23
Changing the brake fluid ......... 6-24
Checking and lubricating the
throttle grip and cable ........... 6-24
Lubricating the front and rear
brake levers .......................... 6-24

SAFETY INFORMATION
1-4
1
sories exceed the capacity of the
scooter’s electrical system an
electric failure could result, which
could cause a dangerous loss of
lights or engine power.
Gasoline and exhaust gas

GASOLINE IS HIGHLY FLAMMA-
BLE:

Always turn the engine off when
refueling.

Take care not to spill any gaso-
line on the engine or exhaust
system when refueling.

Never refuel while smoking or in
the vicinity of an open flame.

Never start the engine or let it run
for any length of time in a closed
area. The exhaust fumes are poi-
sonous and may cause loss of
consciousness and death within a
short time. Always operate your
scooter in an area that has ade-
quate ventilation.

Always turn the engine off before
leaving the scooter unattended
and remove the key from the mainswitch. When parking the scooter,
note the following:

The engine and exhaust system
may be hot, therefore, park the
scooter in a place where pedes-
trians or children are not likely to
touch these hot areas.

Do not park the scooter on a
slope or soft ground, otherwise it
may fall over.

Do not park the scooter near a
flammable source (e.g., a kero-
sene heater, or near an open
flame), otherwise it could catch
fire.

If you should swallow any gaso-
line, inhale a lot of gasoline vapor,
or allow gasoline to get into your
eyes, see your doctor immediate-
ly. If any gasoline spills on your
skin or clothing, immediately wash
the affected area with soap and
water and change your clothes.
EAU10370
Further safe-riding points

Be sure to signal clearly when
making turns.

Braking can be extremely difficult
on a wet road. Avoid hard braking,
because the scooter could slide.
Apply the brakes slowly when
stopping on a wet surface.

Slow down as you approach a cor-
ner or turn. Once you have com-
pleted a turn, accelerate slowly.

Be careful when passing parked
cars. A driver might not see you
and open a door in your path.

Railroad crossings, streetcar rails,
iron plates on road construction
sites, and manhole covers be-
come extremely slippery when
wet. Slow down and cross them
with caution. Keep the scooter up-
right, otherwise it could slide out
from under you.

The brake pads could get wet
when you wash the scooter. After
washing the scooter, check the
brakes before riding.

INSTRUMENT AND CONTROL FUNCTIONS
3-3
2
34
5
6
7
8
9
WARNING

EWA10060
Never turn the key to “OFF” or
“LOCK” while the vehicle is moving,
otherwise the electrical systems will
be switched off, which may result in
loss of control or an accident. Make
sure that the vehicle is stopped be-
fore turning the key to “OFF” or
“LOCK”.
EAU33490
(Parking)
The steering is locked, and the taillights
and auxiliary lights are on. The hazard
light and turn signal lights can be turned
on, but all other electrical systems are
off. The key can be removed.
The steering must be locked before the
key can be turned to “ ”.
CAUTION:

ECA11020
Do not use the parking position for
an extended length of time, other-
wise the battery may discharge.
EAU11001
Indicator and warning lights
EAU11030
Turn signal indicator lights “” and
“”
The corresponding indicator light flash-
es 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 switched
on.
EAU11480
Engine trouble warning light “”
This warning light comes on when an
electrical circuit monitoring the engine
is defective. When this occurs, have a
Yamaha dealer check the self-diagno-
sis system.
The electrical circuit of the warning light
can be checked by turning the key to
“ON”. If the warning light does not come
on for a few seconds, then go off, have
a Yamaha dealer check the electrical
circuit.
EAU26871
Immobilizer system indicator light
“”
The electrical circuit of the indicator
light can be checked by turning the key
to “ON”.
If the indicator light does not come on
for a few seconds, then go off, have a
Yamaha dealer check the electrical
circuit.
When the key is turned to “OFF” and
30 seconds have passed, the indicator
light will start flashing indicating the
immobilizer system is enabled. After
1. Turn signal indicator lights “ ” and “ ”
2. High beam indicator light “ ”
3. Immobilizer system indicator light “ ”
4. Engine trouble warning light “ ”12
34

INSTRUMENT AND CONTROL FUNCTIONS
3-7
2
34
5
6
7
8
9
periodic oil change to be indicated at
the correct time. (See page 6-10.)
The electrical circuit of the indicator can
be checked according to the following
procedure.
1. Set the engine stop switch to “ ”
and 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.
NOTE:

The oil change indicator may flash
when the engine is revved with the
scooter on the centerstand, but this
does not indicate a malfunction.
V-belt replacement indicator
“V-BELT”
This indicator flashes every 20000 km
(12000 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” and make
sure that the engine stop switch is
set to “ ”.
2. 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-diag-
nosis device for various electrical cir-
cuits.
If any of those circuits are defective, the
multi-function display will indicate a
two-digit error code (e.g., 12, 13, 14).
If the multi-function display indicates
such an error code, note the code num-
ber, and then have a Yamaha dealer
check the vehicle.
CAUTION:

ECA11790
If the multi-function display indi-
cates an error code, the vehicle
should be checked as soon as pos-
sible in order to avoid engine dam-
age.
This model is also equipped with a
self-diagnosis device for the immobiliz-er system.
If any of the immobilizer system circuits
are defective, the immobilizer system
indicator light will flash, and then the
multi-function display will indicate a
two-digit error code (e.g., 51, 52, 53)
when the key is turned to “ON”.
NOTE:

If the multi-function display indicates er-
ror code 52, this could be caused by
transponder interference. If this error
appears, try the following.
1. Use the code re-registering key to
start the engine.
NOTE:

Make sure there are no other immobi-
lizer keys close to the main switch, and
do not keep more than one immobilizer
key on the same key ring! Immobilizer
system keys may cause signal interfer-
ence, which may prevent the engine
from starting.
2. If the engine starts, turn it off, and
try starting the engine with the
standard keys.

INSTRUMENT AND CONTROL FUNCTIONS
3-16
1
2
3
4
5
6
7
8
9

EAU15300
Sidestand
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.
NOTE:

The built-in sidestand switch is part of
the ignition circuit cut-off system, which
cuts the ignition in certain situations.
(See further down for an explanation of
the ignition circuit cut-off system.)
WARNING

EWA10240
The vehicle must not be ridden with
the sidestand down, or if the side-
stand 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 con-
trol. Yamaha’s ignition circuit
cut-off system has been designed
to assist the operator in fulfilling
the responsibility of raising the sid-
estand before starting off. There-fore, check this system regularly
as described below and have a
Yamaha dealer repair it if it does
not function properly.
EAU15371
Ignition circuit cut-off system
The ignition circuit cut-off system (com-
prising the sidestand switch and brake
light switches) has the following func-
tions.

It prevents starting when the side-
stand is up, but neither brake is ap-
plied.

It prevents starting when either
brake is applied, but the sidestand
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

EWA10250
If a malfunction is noted, have a
Yamaha dealer check the system be-
fore riding.

PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
2
3
4
5
67
8
9

EAU19592
Checking the spark plugs
The spark plugs are important engine
components, which are easy to check.
Since heat and deposits will cause any
spark plug to slowly erode, the spark
plugs should be removed and checked
in accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plugs can re-
veal the condition of the engine.
To remove a spark plug
1. Remove cowling B. (See
page 6-6.)
2. Remove the spark plug cover by
pulling it out as shown.3. Remove the spark plug cap.
4. Remove the spark plug as shown
with the spark plug wrench includ-
ed in the owner’s tool kit.
To check the spark plugs
1. Check that the porcelain insulatoraround the center electrode on
each spark plug is a medi-
um-to-light tan (the ideal color
when the vehicle is ridden normal-
ly).
2. Check that all spark plugs installed
in the engine have the same color.
NOTE:

If any spark plug shows a distinctly dif-
ferent color, the engine could be defec-
tive. Do not attempt to diagnose such
problems yourself. Instead, have a
Yamaha dealer check the vehicle.
3. Check each spark plug for elec-
trode erosion and excessive car-
bon or other deposits, and replace
it if necessary.
To install a spark plug
1. Measure the spark plug gap with a
wire thickness gauge and, if nec-
essary, adjust the gap to specifica-
tion.
1. Spark plug cover
1

1. Spark plug cap
1. Spark plug wrench
11

Specified spark plug:
NGK/CR7E

PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
1
2
3
4
5
6
7
8
9
2. Clean the surface of the spark plug
gasket and its mating surface, and
then wipe off any grime from the
spark plug threads.
3. Install the spark plug with the
spark plug wrench, and then tight-
en it to the specified torque.
NOTE:

If a torque wrench is not available wheninstalling a spark plug, a good estimate
of the correct torque is 1/4–1/2 turn
past finger tight. However, the spark
plug should be tightened to the speci-
fied torque as soon as possible.
4. Install the spark plug cap.
5. Place the spark plug cover in the
original position as shown, and
then install the cowling.
EAU19852
Engine oil and oil filter
cartridge
The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter car-
tridge replaced at the intervals speci-
fied in the periodic maintenance and
lubrication chart.
To check the engine oil level
1. Place the vehicle on the center-
stand.
CAUTION:

ECA11290
The engine must be cold before pro-
ceeding with the oil level check, oth-
erwise the check will result in a false
reading.
NOTE:

Make sure that the vehicle is positioned
straight up when checking the oil level.
A slight tilt to the side can result in a
false reading.
2. Start the engine, warm it up for two
minutes, and then turn it off.
3. Wait two minutes until the oil set-
1. Spark plug gap
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kgf, 9 ft·lbf)
1

1. Spark plug cover
1

PERIODIC MAINTENANCE AND MINOR REPAIR
6-13
2
3
4
5
67
8
9

rial enters the crankcase.
9. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking, im-
mediately turn the engine off and
check for the cause.
10. Turn the engine off, and then
check the oil level and correct it if
necessary.
To reset the oil change indicator
light
1. Turn the key to “ON”.
2. Hold the reset button pushed for
two to eight seconds.
3. Release the reset button, and the
oil change indicator light will go off.
NOTE:

If the engine oil is changed before the
oil change indicator light comes on (i.e.
before the periodic oil change interval
has been reached), the indicator light
must be reset after the oil change for
the next periodic oil change to be indi-
cated at the correct time. To reset the
oil change indicator light before the pe-
riodic oil change interval has been
reached, follow the above procedure,
but note that the indicator light will
come on for 1.4 seconds after releasing
the reset button, otherwise repeat the
procedure.
EAU19992
Chain drive oil
The chain drive oil should be changed
as follows at the intervals specified in
the periodic maintenance and lubrica-
tion chart.
1. Remove panel F. (See page 6-6.)
2. Place an oil pan under the chain
drive case to collect the used oil.
3. Remove the oil filler cap and drain
bolt to drain the oil from the chain
drive case.
4. Install the chain drive oil drain bolt,
and then tighten it to the specified
torque.
1. Reset button “OIL CHANGE”
1

1. Chain drive oil filler cap
2. Chain drive oil drain bolt
1
2