2010 YAMAHA TMAX check engine

PERIODIC MAINTENANCE AND ADJUSTMENT
6-34
1
2
3
4
5
6
7
8
9

EAU42501
Troubleshooting charts
Starting 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 compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plugs
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gaps, or replace the spark plugs.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Operate the electric starter.

PERIODIC MAINTENANCE AND ADJUSTMENT
6-35
2
3
4
5
67
8
9 Engine overheating
WARNING

EWAT1040

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 de-
tent 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.
TIP

If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolant
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.

SCOOTER CARE AND STORAGE
7-4
2
3
4
5
6
78
9
fuel from deteriorating.
3. Perform the following steps to pro-
tect the cylinders, piston rings, etc.
from corrosion.
a. Remove the spark plug caps
and the spark plugs.
b. Pour a teaspoonful of engine oil
into the spark plug bores.
c. Install the spark plug caps onto
the spark plugs, and then place
the spark plugs 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 walls with oil.)
e. Remove the spark plug caps
from the spark plugs, and then
install the spark plugs and the
spark plug caps.
WARNING!
To prevent damage or injury
from sparking, make sure to
ground the spark plug elec-
trodes while turning the en-
gine over.

[EWA10951]

4. Lubricate all control cables and the
pivoting points of all levers andpedals as well as of the sidestand/
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 excessively
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 6-26.
TIP

Make any necessary repairs before
storing the scooter.

INDEX
A
ABS (for ABS models) ............................ 3-15
ABS warning light (for ABS models) ......... 3-4
Acceleration and deceleration................... 5-2
Air filter element, replacing ..................... 6-16
Anti-theft alarm (optional)........................ 3-11
Auxiliary light bulb, replacing .................. 6-33
B
Battery..................................................... 6-26
Brake fluid, changing .............................. 6-23
Brake fluid level, checking ...................... 6-22
Brake lever, front..................................... 3-13
Brake lever, rear ..................................... 3-13
Brake levers, lubricating.......................... 6-24
Braking ...................................................... 5-3
C
Care .......................................................... 7-1
Catalytic converter .................................. 3-18
Centerstand and sidestand, checking
and lubricating ...................................... 6-24
Chain drive oil ......................................... 6-13
Coolant.................................................... 6-14
Coolant temperature gauge ...................... 3-6
D
Dimmer switch ........................................ 3-12
E
Engine break-in ......................................... 5-4
Engine idling speed................................. 6-16
Engine oil and oil filter cartridge .............. 6-10
Engine stop switch .................................. 3-12
Engine trouble warning light...................... 3-3
F
Front and rear brake lever free play........ 6-20
Front and rear brake pads, checking ...... 6-21Front fork, checking ................................. 6-25
Fuel.......................................................... 3-17
Fuel consumption, tips for reducing........... 5-3
Fuel gauge................................................. 3-5
Fuel tank cap ........................................... 3-16
Fuses, replacing ...................................... 6-28
H
Handlebar switches ................................. 3-11
Hazard switch .......................................... 3-12
Headlight bulb, replacing ......................... 6-30
Helmet holder .......................................... 3-20
High beam indicator light ........................... 3-3
Horn switch .............................................. 3-12
I
Identification numbers ............................... 9-1
Ignition circuit cut-off system ................... 3-24
Immobilizer system .................................... 3-1
Immobilizer system indicator light.............. 3-4
Indicator and warning lights ....................... 3-3
L
License plate light bulb, replacing ........... 6-32
M
Main switch/steering lock........................... 3-2
Maintenance and lubrication, periodic ....... 6-3
Maintenance, emission control system...... 6-2
Matte color, caution ................................... 7-1
Model label ................................................ 9-1
Multi-function display ................................. 3-6
P
Panels, removing and installing ................. 6-6
Parking ...................................................... 5-4
Part locations ............................................. 2-1
Pass switch.............................................. 3-12
R
Rear brake lock lever .............................. 3-14
Rear brake lock lever cable, adjusting .... 6-20
Rear view mirrors .................................... 3-22
Rider backrest, adjusting......................... 3-19
S
Safe-riding points ...................................... 1-5
Safety information ..................................... 1-1
Seat ......................................................... 3-19
Shock absorber assembly ....................... 3-23
Sidestand ................................................ 3-23
Spark plugs, checking ............................... 6-9
Specifications ............................................ 8-1
Speedometer............................................. 3-5
Starting off ................................................. 5-2
Starting the engine .................................... 5-1
Start switch .............................................. 3-12
Steering, checking................................... 6-26
Storage...................................................... 7-3
Storage compartments ............................ 3-21
T
Tail/brake light ......................................... 6-31
Throttle cable free play, checking ........... 6-17
Throttle grip and cable, checking and
lubricating.............................................. 6-23
Tires ........................................................ 6-18
Tool kit....................................................... 6-1
Troubleshooting ...................................... 6-33
Troubleshooting charts............................ 6-34
Turn signal indicator lights ........................ 3-3
Turn signal light bulb (front), replacing .... 6-31
Turn signal switch ................................... 3-12