2005 YAMAHA TMAX engine overheat

INSTRUMENT AND CONTROL FUNCTIONS
3-7
2
34
5
6
7
8
9
flashing, push the “RESET” button for
at least one second. If you do not reset
the fuel reserve tripmeter manually, it
will reset itself automatically and the
display will return to the prior mode af-
ter refueling and traveling 5 km (3 mi).
NOTE:

The display cannot be changed back to
“TRIP F” after pushing the “RESET”
button.
Fuel meter
With the key in the “ON” position, the
fuel meter indicates the amount of fuel
in the fuel tank. The display segments
of the fuel meter disappear towards “E”
(Empty) as the fuel level decreases.
When the fuel level reaches the bottom
segment near “E”, the fuel level warn-
ing indicator and the bottom segment
will flash. Refuel as soon as possible.
Coolant temperature meter
With the key in the “ON” position, the
coolant temperature meter indicates
the temperature of the coolant. The
coolant temperature varies with chang-
es in the weather and engine load. Ifthe top segment and coolant tempera-
ture warning indicator flash, stop the
vehicle and let the engine cool. (See
page 6-33.)
CAUTION:

ECA10020
Do not operate the engine if it is
overheated.
Oil change indicator “OIL”
This indicator flashes at the initial
1000 km (600 mi), then at 5000 km
(3000 mi) and every 5000 km (3000 mi)
thereafter to indicate that the engine
oil should be changed.
After changing the engine oil, reset the
oil change indicator. (See page 6-10.)
If the engine oil is changed before theoil 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
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
(12500 mi) when the V-belt needs to be

OPERATION AND IMPORTANT RIDING POINTS
5-4
2
3
4
56
7
8
9

EAU16820
Tips for reducing fuel
consumption
Fuel consumption depends largely on
your riding style. Consider the following
tips to reduce fuel consumption:

Avoid high engine speeds during
acceleration.

Avoid high engine speeds with no
load on the engine.

Turn the engine off instead of let-
ting it idle for an extended length of
time (e.g., in traffic jams, at traffic
lights or at railroad crossings).
EAU16841
Engine break-in
There is never a more important period
in the life of your engine than the period
between 0 and 1600 km (1000 mi). For
this reason, you should read the follow-
ing material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1600 km (1000 mi). The various parts in
the engine wear and polish themselves
to the correct operating clearances.
During this period, prolonged full-throt-
tle operation or any condition that might
result in engine overheating must be
avoided.
EAU36530
0–1000 km (0–600 mi)
Avoid prolonged operation above
4000 r/min.
1000–1600 km (600–1000 mi)
Avoid prolonged operation above
6000 r/min.
CAUTION:

ECA11281
After 1000 km (600 mi) of operation,the engine oil must be changed, and
the oil filter cartridge or element re-
placed.
1600 km (1000 mi) and beyond
The vehicle can now be operated nor-
mally.
CAUTION:

ECA10310

Keep the engine speed out of
the tachometer red zone.

If any engine trouble should oc-
cur during the engine break-in
period, immediately have a
Yamaha dealer check the vehi-
cle.

PERIODIC MAINTENANCE AND MINOR REPAIR
6-16
1
2
3
4
5
6
7
8
9
CAUTION:

ECA10470

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 engine may not be
sufficiently cooled and the cool-
ing system will not be protectedagainst frost and corrosion.

If water has been added to the
coolant, 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.
5. Install the coolant reservoir cover
by installing the screw.
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
6-33 for further instructions.
EAU21120
Cleaning the air filter element
The air filter element should be cleaned
at the intervals specified in the periodic
maintenance and lubrication chart.
Clean the air filter element more fre-
quently if you are riding in unusually
wet or dusty areas.
1. Remove cowling A. (See
page 6-6.)
2. Remove the windshield by remov-
ing the screws.
3. Remove the air filter case cover by
removing the screws, and then pull
the air filter element out.
1. Coolant reservoir cap
Coolant reservoir capacity (up to the
maximum level mark):
0.35 L (0.37 US qt) (0.31 Imp.qt)
1

1. Screw
1
1(×5)

PERIODIC MAINTENANCE AND MINOR REPAIR
6-34
1
2
3
4
5
6
7
8
9Engine overheating
WARNING

EWA10400

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.

After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent 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.
NOTE:

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 NOTE.)
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.