2008 YAMAHA TMAX check engine

PERIODIC MAINTENANCE AND MINOR REPAIR
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5. Check the washer and O-ring for
damage and replace them if nec-
essary.
NOTE:

Skip steps 6–8 if the oil filter cartridge is
not being replaced.
6. Remove the oil filter cartridge with
an oil filter wrench.
NOTE:

An oil filter wrench is available at a
Yamaha dealer.
7. Apply a thin coat of engine oil to
the O-ring of the new oil filter car-
tridge.
NOTE:

Make sure that the O-ring is properly
seated.
8. Install the new oil filter cartridge,
and then tighten it to the specified
torque with a torque wrench.
1. Engine oil drain bolt
1

1. Engine oil drain bolt
2. O-ring
3. Washer
12
3

1. Oil filter wrench
2. Oil filter cartridge
2
1

PERIODIC MAINTENANCE AND MINOR REPAIR
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9. Install the engine oil drain bolt, and
then tighten it to the specified
torque.
10. Add the specified amount of the
recommended engine oil, and then
install and tighten the oil filler cap.
NOTE:

Be sure to wipe off spilled oil on any
parts after the engine and exhaust sys-
tem have cooled down.
CAUTION:

ECA11620

In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a high-
er quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.

Make sure that no foreign mate-
rial enters the crankcase.
11. 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.
12. Turn the engine off, and then
check the oil level and correct it if
necessary.
13. Reset the oil change indicator.
(See page 3-9.)
NOTE:

If the engine oil is changed before the
oil change indicator comes on (i.e. be-
fore the periodic oil change interval has
been reached), the indicator must be
reset after the oil change for the next
1. Torque wrench
Tightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf, 12.3 ft·lbf)
Tightening torque:
Engine oil drain bolt:
43 Nm (4.3 m·kgf, 31.1 ft·lbf)
1

Recommended engine oil:
See page 8-1.
Oil quantity:
Without oil filter cartridge replace-
ment:
2.80 L (2.96 US qt) (2.46 Imp.qt)
With oil filter cartridge replacement:
2.90 L (3.07 US qt) (2.55 Imp.qt)
1. “CD” specification
2. “ENERGY CONSERVING II”
1
2

PERIODIC MAINTENANCE AND MINOR REPAIR
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8. If the chain drive oil is below the
minimum level mark, add sufficient
oil of the recommended type to
raise it to the correct level.
9. Insert the dipstick into the oil filler
hole, and then tighten the oil filler
cap.
CAUTION:

ECA15010

Make sure that no foreign mate-
rial enters the chain drive case.

Make sure that no oil gets on the
tire or wheel.
10. Check the chain drive case for oil
leakage. If leakage is found, check
for the cause.11. Install the panel.
EAU20070
Coolant
The coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU42831
To check the coolant level
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.
NOTE:


The coolant level must be checked
on a cold engine since the level
varies with engine temperature.

Make sure that the vehicle is posi-
tioned straight up when checking
the coolant level. A slight tilt to the
side can result in a false reading.
2. Check the coolant level through
the check window.
NOTE:

The coolant should be between the
minimum and maximum level marks.
1. Maximum level mark
2. Minimum level mark
1
2

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3. If the coolant is at or below the
minimum level mark, lift up the
right floorboard mat as shown.
4. Remove the coolant reservoir cov-er by removing the screw.
5. Open the reservoir cap, add cool-
ant to the maximum level mark,
and then close the reservoir cap.
CAUTION:

ECA10471

If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.

If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the cooling system will not
be protected against frost and
corrosion.

If water has been added to the
1. Maximum level mark
2. Minimum level mark
3. Coolant level check window
1. Right floorboard mat
3
1
2
1

1. Coolant reservoir cover
2. Screw
12

1. Coolant reservoir cap
Coolant reservoir capacity (up to the
maximum level mark):
0.25 L (0.26 US qt) (0.22 Imp.qt)
1

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9coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possible,
otherwise the effectiveness of

the coolant will be reduced.
WARNING

EWA10380
Never attempt to remove the radiator
cap when the engine is hot.
6. Install the coolant reservoir cover
by installing the screw.
7. Place the right floorboard mat in
the original position.
NOTE:


The radiator fan is automatically
switched on or off according to the
coolant temperature in the radia-
tor.

If the engine overheats, see page
6-35 for further instructions.
EAU45020
Replacing the air filter element
The air filter element should be re-
placed at the intervals specified in the
periodic maintenance and lubrication
chart. Replace the air filter element
more frequently if you are riding in un-
usually wet or dusty areas.
To replace the air filter element
1. Remove panels C and D. (See
page 6-7.)
2. Remove the air filter case cover by
removing the screws.
3. Pull the air filter element out.4. Insert a new air filter element into
the air filter case.
CAUTION:

ECA10480

Make sure that the air filter ele-
ment is properly seated in the
air filter case.

The engine should never be op-
erated without the air filter ele-
ment installed, otherwise the
piston(s) and/or cylinder(s) may
become excessively worn.
5. Install the air filter case cover by in-
stalling the screws.
6. Install the panels.
1. Screw
2. Air filter case cover
2
1
1

1. Air filter element
1

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EAU33482
Adjusting the engine idling
speed
The engine idling speed must be
checked and, if necessary, adjusted as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.
The engine should be warm before
making this adjustment.
1. Remove panel F. (See page 6-7.)
2. Check the engine idling speed
and, if necessary, adjust it to spec-
ification by turning the idle adjust-
ing screw. To increase the engine
idling speed, turn the screw in di-
rection (a). To decrease the en-
gine idling speed, turn the screw in
direction (b).
NOTE:

If the specified idling speed cannot be
obtained as described above, have a
Yamaha dealer make the adjustment.
3. Install the panel.
EAU21382
Checking the throttle cable
free play
The throttle cable free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, have a Yamaha dealer adjust it.
1. Idle adjusting screw
Engine idling speed:
1100–1300 r/min
1(a) (b)

1. Throttle cable free play
1

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EAU21401
Valve clearance
The 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.
EAU33600
Tires
To maximize the performance, durabil-
ity, and safe operation of your vehicle,
note the following points regarding the
specified tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
WARNING

EWA10500

The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).

The tire air pressure must be ad-
justed in accordance with the
riding speed and with the total
weight of rider, passenger, car-
go, and accessories approved
for this model.
WARNING

EWA11200
Because loading has an enormous
impact on the handling, braking,
performance and safety characteris-
tics of your vehicle, you should keep
the following precautions in mind.

NEVER OVERLOAD THE VEHI-
CLE! Operation of an overload-
ed vehicle may result in tire
damage, loss of control, or se-
vere injury. Make sure that the
total weight of rider, passenger,
cargo, and accessories does
Tire air pressure (measured on cold
tires):
0–90 kg (0–198 lb):
Front:
225 kPa (33 psi) (2.25 kgf/cm
2

)
Rear:
250 kPa (36 psi) (2.50 kgf/cm
2

)
90–190 kg (198–419 lb):
Front:
225 kPa (33 psi) (2.25 kgf/cm
2

)
Rear:
280 kPa (41 psi) (2.80 kgf/cm
2

)
Maximum load*:
190 kg (419 lb)
* Total weight of rider, passenger, car-
go and accessories

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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.