2008 YAMAHA TMAX spark plugs

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 ...................................3-5
Fuel gauge .......................................3-5
Coolant temperature gauge .............3-6
Multi-function display .......................3-6
Anti-theft alarm (optional) ..............3-11
Handlebar switches .......................3-11
Front brake lever ...........................3-12
Rear brake lever ............................3-13
Rear brake lock lever .....................3-14
ABS (for ABS models) ...................3-14
Fuel tank cap .................................3-15
Fuel ................................................3-16
Catalytic converter .........................3-17
Seat ...............................................3-17
Helmet holder ................................3-18
Storage compartments ..................3-19
Rear view mirrors ..........................3-21
Shock absorber .............................3-21Sidestand ...................................... 3-21
Ignition circuit cut-off system ......... 3-22
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 ......... 5-3
Braking ............................................ 5-3
Tips for reducing fuel
consumption ................................ 5-4
Engine break-in ............................... 5-4
Parking ............................................ 5-5
PERIODIC MAINTENANCE AND MINOR
REPAIR
............................................... 6-1
Owner’s tool kit ................................ 6-1
Periodic maintenance and lubrication
chart ............................................. 6-3
Removing and installing panels ...... 6-7
Checking the spark plugs .............. 6-10
Engine oil and oil filter cartridge .... 6-11
Chain drive oil ............................... 6-14
Coolant .......................................... 6-15
Replacing the air filter element ...... 6-17
Adjusting the engine idling
speed ......................................... 6-18Checking the throttle cable free
play ............................................ 6-18
Valve clearance ............................ 6-19
Tires .............................................. 6-19
Cast wheels .................................. 6-21
Front and rear brake lever free
play ............................................ 6-21
Adjusting the rear brake lock lever
cable .......................................... 6-22
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 ............................ 6-25
Lubricating the front and rear brake
levers ......................................... 6-25
Checking and lubricating the
centerstand and sidestand ........ 6-26
Checking the front fork .................. 6-26
Checking the steering ................... 6-27
Checking the wheel bearings ........ 6-27
Battery ........................................... 6-28
Replacing the fuses ...................... 6-29
Replacing the headlight bulb ........ 6-31
Tail/brake light ............................... 6-32
Replacing a front turn signal light
bulb ............................................ 6-32
Rear turn signal light bulb .............. 6-32
Replacing the license plate light
bulb ............................................ 6-33

PERIODIC MAINTENANCE AND MINOR REPAIR
6-3
1
2
3
4
5
6
7
8
9

EAU1770A
Periodic maintenance and lubrication chart
NOTE:


The annual checks must be performed every year, except if a kilometer-based maintenance, or for the UK, a
mileage-based maintenance, is performed instead.

From 50000 km (30000 mi), repeat the maintenance intervals starting from 10000 km (6000 mi).

Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical
skills.
NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING
ANNUAL
CHECK 1000 km
(600 mi)10000 km
(6000 mi)20000 km
(12000 mi)30000 km
(18000 mi)40000 km
(24000 mi)
1*
Fuel line

Check fuel hoses for cracks or
damage.
√√√√√
2*
Spark plugs

Check condition.

Clean and regap.
√√

Replace.
√√
3*
Valves

Check valve clearance.

Adjust.Every 40000 km (24000 mi)
4
Air filter element

Replace.
√√
5*
V-belt case air filter
elements

Clean.
√√

Replace.
√√
6*
Front brake

Check operation, fluid level
and vehicle for fluid leakage.
√√√√√√

Replace brake pads. Whenever worn to the limit
7*
Rear brake

Check operation, fluid level
and vehicle for fluid leakage.
√√√√√√

Replace brake pads. Whenever worn to the limit
8
Rear brake lock

Check operation.

Adjust.
√√√√√√

PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
2
3
4
5
67
8
9

EAU19642
Checking the spark plugs
The spark plugs are important engine
components, which should be checked
periodically, preferably by a Yamaha
dealer. Since heat and deposits will
cause any spark plug to slowly erode,
they 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.
The porcelain insulator around the cen-
ter electrode of each spark plug should
be a medium-to-light tan (the ideal color
when the vehicle is ridden normally),
and all spark plugs installed in the en-
gine should have the same color. If any
spark plug shows a distinctly different
color, the engine could be operating im-
properly. Do not attempt to diagnose
such problems yourself. Instead, have
a Yamaha dealer check the vehicle.
If a spark plug shows signs of electrode
erosion and excessive carbon or other
deposits, it should be replaced.Before installing a spark plug, the spark
plug gap should be measured with a
wire thickness gauge and, if necessary,
adjusted to specification.
Clean the surface of the spark plug
gasket and its mating surface, and then
wipe off any grime from the spark plug
threads.
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.
Specified spark plug:
NGK/CR7E
1. Spark plug gap
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Tightening torque:
Spark plug:
12.5 Nm (12.5 m·kgf, 9 ft·lbf)

PERIODIC MAINTENANCE AND MINOR REPAIR
6-35
1
2
3
4
5
6
7
8
9

EAU42500
Troubleshooting charts
Starting problems or poor engine
performance
WARNING

EWA10840
Keep away open flames and do not smoke while checking or working on the fuel system.
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.

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

EWA10950
To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turning
the engine over.
4. Lubricate all control cables and thepivoting points of all levers and
pedals 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 ex-
cessively cold or warm place
[less than 0 °C (30 °F) or more
than 30 °C (90 °F)]. For more in-
formation on storing the battery,
see page 6-28.
NOTE:

Make any necessary repairs before
storing the scooter.

INDEX
A
ABS (for ABS models) .............................3-14
ABS warning light (for ABS models) ..........3-4
Acceleration and deceleration ...................5-3
Air filter element, replacing ......................6-17
Anti-theft alarm (optional) ........................3-11
Auxiliary light bulb, replacing ...................6-33
B
Battery .....................................................6-28
Brake fluid, changing ...............................6-24
Brake fluid level, checking .......................6-23
Brake lever, front .....................................3-12
Brake lever, rear ......................................3-13
Brake levers, lubricating ..........................6-25
Braking ......................................................5-3
C
Care ...........................................................7-1
Catalytic converter ...................................3-17
Centerstand and sidestand, checking and
lubricating ..............................................6-26
Chain drive oil ..........................................6-14
Coolant ....................................................6-15
Coolant temperature gauge .......................3-6
D
Dimmer switch .........................................3-11
E
Engine break-in .........................................5-4
Engine idling speed .................................6-18
Engine oil and oil filter cartridge ..............6-11
Engine stop switch...................................3-12
Engine trouble warning light ......................3-4
F
Front and rear brake lever free play ........6-21
Front and rear brake pads, checking .......6-22Front fork, checking ................................. 6-26
Fuel ......................................................... 3-16
Fuel consumption, tips for reducing .......... 5-4
Fuel gauge ................................................ 3-5
Fuel tank cap ........................................... 3-15
Fuses, replacing ...................................... 6-29
H
Handlebar switches ................................. 3-11
Hazard switch .......................................... 3-12
Headlight bulb, replacing ......................... 6-31
Helmet holder .......................................... 3-18
High beam indicator light ........................... 3-3
Horn switch.............................................. 3-12
I
Identification numbers ............................... 9-1
Ignition circuit cut-off system ................... 3-22
Immobilizer system.................................... 3-1
Immobilizer system indicator light ............. 3-4
Indicator and warning lights....................... 3-3
K
Key identification number .......................... 9-1
L
License plate light bulb, replacing ........... 6-33
M
Main switch/steering lock .......................... 3-2
Matte color, caution ................................... 7-1
Model label ................................................ 9-2
Multi-function display ................................. 3-6
P
Panels, removing and installing................. 6-7
Parking ...................................................... 5-5
Part locations............................................. 2-1
Pass switch ............................................. 3-11Periodic maintenance and lubrication
chart ........................................................ 6-3
Pre-operation check list............................. 4-2
R
Rear brake lock lever .............................. 3-14
Rear brake lock lever cable, adjusting .... 6-22
Rear view mirrors .................................... 3-21
S
Safe-riding points ...................................... 1-4
Safety information ..................................... 1-1
Seat ......................................................... 3-17
Shock absorber ....................................... 3-21
Sidestand ................................................ 3-21
Spark plugs, checking ............................. 6-10
Specifications ............................................ 8-1
Speedometer............................................. 3-5
Starting off ................................................. 5-2
Starting the engine .................................... 5-1
Start switch.............................................. 3-12
Steering, checking................................... 6-27
Storage...................................................... 7-3
Storage compartments ............................ 3-19
T
Tail/brake light ......................................... 6-32
Throttle cable free play, checking ........... 6-18
Throttle grip and cable, checking and
lubricating ............................................. 6-25
Tires ........................................................ 6-19
Tool kit....................................................... 6-1
Troubleshooting ...................................... 6-34
Troubleshooting charts............................ 6-35
Turn signal indicator lights ........................ 3-3
Turn signal light bulb (front), replacing .... 6-32
Turn signal switch ................................... 3-11