YAMAHA TMAX 2021 Manual Online

Periodic maintenance an d a djustment
8-10
8
3. Remove the panel as shown.
To install the panel
1. Insert the tabs on the upper left and right sides of the panel.
2. Align the center and lower projec- tions and then push the panel into
its original position. 3. Install the screws.
Panel B
To remove the panel
1. Remove the screw. 2. Gently pry up the upper portion of
the panel, and then slide the panel
upwards.
To install the panel
Place the panel in the original position,
and then install the screw.
Panel C
To remove the panelRemove the screws, and then pull the
panel outward.
1. Panel A
1
1. Panel B
2. Screw1
2
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Periodic maintenance an d a djustment
8-11
8 To install the panel
Place the panel in the original position,
and then install the screws.
EAU19643
Checkin
g the spark plu gsThe spark plugs are important engine
components, which should be
checked periodically, preferably by a
Yamaha dealer. Since heat and depos- its will cause any spark plug to slowly
erode, they should be removed and
checked in accordance with the peri-
odic maintenance and lubrication
chart. In addition, the condition of the
spark plugs can reveal the condition of
the engine.
The porcelain insulator around the
center 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 engine should have the same
color. If any spark plug shows a dis-
tinctly different color, the engine could
be operating improperly. Do not at-
tempt to diagnose such problems
yourself. Instead, have a Yamaha deal-
er check the vehicle.
If a spark plug shows signs of elec-
trode 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.
1. Screw
2. Panel C
1
2
Specifie d spark plu g:
NGK/LMAR7G1. Spark plug gapSpark plu g g ap:
0.7–0.8 mm (0.028–0.031 in)
Ti ghtenin g torque:
Spark plug: 13 N·m (1.3 kgf·m, 9.6 lb·ft)
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Periodic maintenance an d a djustment
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8
TIPIf a torque wrench is not available
when installing 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
specified torque as soon as possible.
EAU36112
CanisterThis model is equipped with a canister
to prevent the discharging of fuel vapor
into the atmosphere. Before operating
this vehicle, make sure to check the
following:
 Check each hose connection.
 Check each hose and canister for
cracks or damage. Replace if
damaged.
 Make sure that the canister
breather is not blocked, and if
necessary, clean it.
EAU77364
Engine oil an d oil filter car-
tri dgeThe 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 en gine oil level
1. Place the vehicle on the center- stand. 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 level settles.
4. Check the oil level through the check window located at the bot-
tom-left side of the crankcase.TIPThe engine oil should be between the
minimum and maximum level marks.
1. Canister
2. Canister breather
12
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Periodic maintenance an d a djustment
8-13
8 5. If the engine oil is below the mini-
mum level mark, add sufficient oil
of the recommended type to raise
it to the correct level.
To chan ge the en gine oil (an d re-
place the oil filter cartri dge)
1. Place the vehicle on a level sur- face.
2. Start the engine, warm it up for several minutes, and then turn it
off.
3. Place an oil pan under the engine to collect the used oil. 4. Remove the engine oil filler cap,
and then the engine oil drain bolt
and its gasket.
5. Check the O-ring for damage and replace it if necessary.
TIPSkip steps 6…8 if the oil filter cartridge
is not being replaced.6. Remove the oil filter cartridge withan oil filter wrench.TIPAn oil filter wrench is available at a
Yamaha dealer.7. Apply a thin coat of clean engine oil to the O-ring of the new oil filter
cartridge.
1. Engine oil level check window
2. Maximum level mark
3. Minimum level mark
1
2
3
1. Engine oil filler cap
1. Engine oil drain bolt
2. O-ring
3. Gasket
1
12
3
1. Oil filter wrench
2. Oil filter cartridge
1
2
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Periodic maintenance an d a djustment
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8
TIPMake 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. 9. Install the engine oil drain bolt and
its new gasket, and then tighten
the bolt to the specified torque.
10. Check the O-ring for damage and replace it if necessary.
11. Refill with the specified amount of the recommended engine oil, and
then install and tighten the oil filler
cap.
TIPBe sure to wipe off spilled oil on any
parts after the engine and exhaust sys-
tem have cooled down.NOTICE
ECA11621
In or der to prevent clutch slip-
pa ge (since the en gine oil also
lu bricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a hi gh-
er quality than specifie d. In
a dd ition, do not use oils la bele d
“ENERGY CONSERVING II” or
hi gher.
1. O-ring
1. Torque wrench
1
1
Ti ghtenin g torque:
Oil filter cartridge:
17 N·m (1.7 kgf·m, 13 lb·ft)
Ti ghtenin g torque:
Engine oil drain bolt: 43 N·m (4.3 kgf·m, 32 lb·ft)
1. Engine oil filler cap
2. O-ring
21
En gine oil:
Recommended brand:
YA M A L U B E
SAE viscosity grades:
10W-40
Recommended engine oil grade: API service SG type or higher,
JASO standard MA
Oil quantity: Oil change:
2.60 L (2.75 US qt, 2.29 Imp.qt)
With oil filter removal: 2.90 L (3.07 US qt, 2.55 Imp.qt)
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Periodic maintenance an d a djustment
8-15
8 
Make sure that no forei gn mate-
rial enters the crankcase.
12. Start the engine, and then let it idle for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off
and check for the cause.
13. Turn the engine off, and then check the oil level and correct it if
necessary.
14. Reset the oil change indicator. (See page 5-11.)
EAU85450
Why Yamalu beYAMALUBE oil is a Genuine YAMAHA
Part born of the engineers’ passion
and belief that engine oil is an impor-
tant liquid engine component. We form
teams of specialists in the fields of me-
chanical engineering, chemistry, elec-
tronics and track testing, and have
them develop the engine together with
the oil it will use. Yamalube oils take full
advantage of the base oil’s qualities
and blend in the ideal balance of addi-
tives to make sure the final oil clears
our performance standards. Thus,
Yamalube mineral, semisynthetic and synthetic oils have their own distinct
characters and value. Yamaha’s expe-
rience gained over many years of re-
search and development into oil since
the 1960’s helps make Yamalube the
best choice for your Yamaha engine.
EAUS1203
CoolantThe coolant level should be checked
regularly. In addition, the coolant must
be changed at the intervals specified in
the periodic maintenance chart.TIPIf genuine Yamaha coolant is not avail-
able, use an ethylene glycol antifreeze
containing corrosion inhibitors for alu-
minum engines and mix with distilled
water at a 1:1 ratio.
EAU52025
To check the coolant level
Since the coolant level varies with en-
gine temperature, check when the en-
gine is cold. 1. Park the vehicle on a level surface.
2. Hold the vehicle upright, or place it on the centerstand.Recommen ded coolant:
YAMALUBE coolant
Coolant quantity: Coolant reservoir (max level mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (including all routes): 1.54 L (1.63 US qt, 1.36 Imp.qt)
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Periodic maintenance an d a djustment
8-16
8
3. Look at the coolant level through
the check window.
4. If the coolant is at or below the minimum level mark, remove the
left floorboard mat by pulling it up. 5. Remove the coolant reservoir cov-
er by removing the screws.
6. Remove the coolant reservoir cap. WARNING! Remove only thecoolant reservoir cap. Never at-
tempt to remove the ra diator
cap when the en gine is hot.
[EWA15162]
7. Add coolant to the maximum level
mark. NOTICE: If coolant is not
availab le, use distille d water or
soft tap water instead . Do not
use har d water or salt water
since it is harmful to the en gine.
If water has been used instead
of coolant, replace it with cool-
ant as soon as possi ble, other-
wise the coolin g system will not
b e protecte d a gainst frost an d
corrosion. If water has been
a dd ed to the coolant, have a
Yamaha dealer check the anti-
freeze content of the coolant as
soon as possi ble, otherwise the
effectiveness of the coolant will
b e re duce d.
[ECA10473]
1. Coolant level check window
2. Maximum level mark
3. Minimum level mark
1. Floorboard mat
12
3
1
1. Coolant reservoir cover
2. Screw
1
2
1. Coolant reservoir cap
1
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Periodic maintenance an d a djustment
8-17
8 8. Install the coolant reservoir cap.
9. Install the coolant reservoir cover.
10. Install the floorboard mat.
EAU33032
Chan gin g the coolant
The coolant must be changed at the in-
tervals specified in the periodic main-
tenance and lubrication chart. Have a
Yamaha dealer change the coolant.
WARNING! Never attempt to remove the ra diator cap when the en gine is
hot.
[EWA10382] EAU88800
Replacin
g the en gine air filter
element and cleaning the
check hoseThe engine air filter element should be
replaced at the intervals specified in
the periodic maintenance chart. Re-
place the air filter element more fre-
quently if you often ride in wet or dusty
conditions.
In addition, the air filter check hose
must be checked and cleaned by a
Yamaha dealer at the intervals speci- fied in the periodic maintenance and
lubrication chart.
To replace the air filter element 1. Remove panel C. (See page 8-9.)
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. NOTICE: Make
sure that the air filter element is
properly seate d in the air filter
case. The en gine shoul d never
1. Screw
2. Air filter case cover
1. Air filter element
1
1
2
1
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Periodic maintenance an d a djustment
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8
b
e operated without the air filter
element installed , otherwise the
piston(s) an d/or cylin der(s) may
b ecome excessively worn.
[ECA10482]
5. Install the air filter case cover by
installing the screws.
6. Install the panel.
EAU80970
V- belt air filter elementsThe V-belt air filter elements should be
serviced at the intervals specified in the
periodic maintenance chart. Have
these elements serviced more fre-
quently if you often ride in wet or dusty
conditions.
EAU44735
Checkin g the en gine i dlin g
spee dCheck the engine idling speed and, if
necessary, have it corrected by a
Yamaha dealer.
Engine i dlin g spee d:
1100–1300 r/min
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Periodic maintenance an d a djustment
8-19
8
EAU21386
Checkin g the throttle grip free
playMeasure the throttle grip free play as
shown.
Periodically check the throttle grip free
play and, if necessary, have a Yamaha
dealer adjust it.
EAU21403
Valve clearanceThe valves are an important engine
component, and since valve clearance
changes with use, they must be
checked and adjusted at the intervals
specified in the periodic maintenance
chart. Unadjusted valves can result in
improper air-fuel mixture, engine
noise, and eventually engine damage.
To prevent this from occurring, have
your Yamaha dealer check and adjust
the valve clearance at regular intervals.TIPThis service must be performed when
the engine is cold.
EAU77621
TiresTires are the only contact between the
vehicle and the road. Safety in all con-
ditions of riding depends on a relatively
small area of road contact. Therefore, it
is essential to maintain the tires in good
condition at all times and replace them
at the appropriate time with the speci-
fied tires.
Tire air pressure
The tire air pressure should be
checked and, if necessary, adjusted
before each ride.
WARNING
EWA10504
Operation of this vehicle with im-
proper tire pressure may cause se-
vere injury or death from loss of
control.  The tire air pressure must be
checked and a djuste d on col d
tires (i.e., when the temperature
of the tires equals the amb ient
temperature).
 The tire air pressure must be
a d juste d in accor dance with the
ri din g speed and with the total
1. Throttle grip free playThrottle g rip free play:
1.0–3.0 mm (0.04–0.12 in)
1
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