YAMAHA MT-01 2009 Workshop Manual

PERIODIC MAINTENANCE AND ADJUSTMENT
6-7
6
EAU18760
Removing and installing the
cowling The cowling shown above needs to be
removed to perform some of the main-
tenance jobs described in this chapter.
Refer to this section each time the
cowling needs to be removed and in-
stalled.
EAU36831
Cowling
To remove the cowlingRemove the bolts, and then pull the
cowling off as shown.To install the cowling
Place the cowling in the original posi-
tion, and then install the bolts.
TIPMake sure that the grommet fits over
the projection.
1. Cowling
1. Cowling
2. Bolt
1. Cowling
2. Bolt
1. Cowling
2. Projection
3. Grommet
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-8
6
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.
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 speci-
fied torque as soon as possible.
Specified spark plug:
NGK/DPR7EA-9
DENSO/X22EPR-U91. Spark plug gapSpark plug gap:
0.8–0.9 mm (0.031–0.035 in)
Tightening torque:
Spark plug:
17.5 Nm (1.75 m·kgf, 12.7 ft·lbf)
U5YUE5E0.book Page 8 Tuesday, March 17, 2009 9:02 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-9
6
EAU36809
Engine oil and oil filter car-
tridge The 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 engine oil level
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion. A slight tilt to the side can
result in a false reading.
2. Start the engine, warm it up until
the engine oil has reached a nor-
mal temperature of 60 °C (140 °F),
let it continue to idle for ten sec-
onds, and then turn the engine off.TIPTo achieve the proper engine oil tem-
perature for an accurate oil level read-
ing, the engine must have first
completely cooled down, and then
warmed up again for several minutes to
normal operating temperature.
3. Wait a few minutes until the oil set-
tles, remove the engine oil filler
cap, wipe the engine oil dipstick
clean, insert it back into the oil filler
hole (without screwing it in), and
then remove it again to check the
oil level.TIPThe engine oil should be between the
minimum and maximum level marks.
4. If the engine oil is at or below the
minimum level mark, add sufficient
oil of the recommended type to
raise it to the correct level.TIPWhen adding oil, be careful not to over-
fill the engine oil tank; the oil level rises
faster starting from the half level portion
on the dipstick.5. Insert the dipstick into the oil filler
hole, and then tighten the oil filler
cap.
1. Engine oil filler cap
1. Maximum level mark
2. Minimum level mark
3. Engine oil dipstick
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-10
6
NOTICE
ECA10900
Make sure that the oil filler cap is se-
curely tightened, otherwise oil may
seep out when the engine is run-
ning.To change the engine oil (with or
without oil filter cartridge replace-
ment)
1. Place the vehicle on a level sur-
face.
2. Remove the cowling. (See page
6-7.)
3. Start the engine, warm it up for
several minutes, and then turn it
off.
4. Place an oil pan under the oil tank
to collect the used oil.
5. Remove the engine oil filler cap
and drain bolt to drain the oil from
the oil tank.6. Place an oil pan under the engine
to collect the used oil.
7. Remove the engine oil drain bolt to
drain the oil from the crankcase.
TIPSkip steps 8–12 if the oil filter cartridge
is not being replaced.8. Remove the rectifier/regulator by
removing the bolts.
9. Remove the oil filter cartridge with
an oil filter wrench.
1. Engine oil drain bolt (oil tank)
1. Engine oil drain bolt (crankcase)
1. Rectifier/regulator
2. Bolt
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-11
6
TIPAn oil filter wrench is available at a
Yamaha dealer.10. Apply a thin coat of clean engine
oil to the O-ring of the new oil filter
cartridge.
TIPMake sure that the O-ring is properly
seated.11. Install the new oil filter cartridge
with an oil filter wrench, and then
tighten it to the specified torque
with a torque wrench.12. Install the rectifier/regulator by in-
stalling the bolts, and then tighten
them to the specified torque.
13. Install the engine oil drain bolts,
and then tighten them to the spec-
ified torques.
1. Oil filter cartridge
2. Oil filter wrench
1. O-ring
1. Torque wrench
Tightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf, 12 ft·lbf)
Tightening torque:
Rectifier/regulator bolt:
7 Nm (0.7 m·kgf, 5.1 ft·lbf)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-12
614. Pour only 2.5 L (2.6 US qt,
2.2 Imp.qt) of the specified amount
of recommended engine oil
through the filler hole, insert the
dipstick, and then tighten the oil fill-
er cap.
15. Start the engine, rev it several
times, and then turn it off.
16. Remove the engine oil filler cap,
and then gradually fill the oil tank
with the remaining oil quantity
while regularly checking the oil lev-
el on the dipstick.
TIPBe sure to wipe off spilled oil on any
parts after the engine and exhaust sys-
tem have cooled down.NOTICE
ECA15080


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 oil tank.
17. Install the engine oil filler cap.
18. 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.
19. Turn the engine off, and then
check the oil level and correct it if
necessary.20. Install the cowling.
Tightening torques:
Engine oil drain bolt (crankcase):
43 Nm (4.3 m·kgf, 31 ft·lbf)
Engine oil drain bolt (oil tank):
35 Nm (3.5 m·kgf, 25 ft·lbf)
Recommended engine oil:
See page 8-1.
Oil quantity:
Without oil filter cartridge replace-
ment:
3.70 L (3.91 US qt, 3.26 Imp.qt)
With oil filter cartridge replacement:
4.10 L (4.33 US qt, 3.61 Imp.qt)
U5YUE5E0.book Page 12 Tuesday, March 17, 2009 9:02 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-13
6
EAU36762
Air filter element The air filter element must be replaced
at the intervals specified in the periodic
maintenance and lubrication chart.
Have a Yamaha dealer replace the air
filter element.
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.
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.
1. Throttle cable free play
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-14
6
EAU21772
Tires To maximize the performance, durabil-
ity, and safe operation of your motorcy-
cle, 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
EWA10501
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 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
EWA10511
Never overload your vehicle. Opera-
tion of an overloaded vehicle could
cause an accident.
Tire inspection
The tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail or
glass fragments in it, or if the sidewall is
cracked, have a Yamaha dealer re-
place the tire immediately.TIPThe tire tread depth limits may differ
from country to country. Always comply
with the local regulations.
Tire air pressure (measured on cold
tires):
0–90 kg (0–198 lb):
Front:
250 kPa (2.50 kgf/cm², 36 psi)
Rear:
290 kPa (2.90 kgf/cm², 42 psi)
90–196 kg (198–432 lb):
Front:
250 kPa (2.50 kgf/cm², 36 psi)
Rear:
290 kPa (2.90 kgf/cm², 42 psi)
High-speed riding:
Front:
250 kPa (2.50 kgf/cm², 36 psi)
Rear:
290 kPa (2.90 kgf/cm², 42 psi)
Maximum load*:
196 kg (432 lb)
* Total weight of rider, passenger, car-
go and accessories
1. Tire sidewall
2. Tire tread depthMinimum tire tread depth (front and
rear):
1.6 mm (0.06 in)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-15
6
WARNING
EWA10470


Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the vehi-
cle with excessively worn tires
decreases riding stability and
can lead to loss of control.


The replacement of all wheel
and brake related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the
necessary professional knowl-
edge and experience.
Tire informationThis motorcycle is equipped with cast
wheels and tubeless tires with valves.
WARNING
EWA10481


The front and rear tires should
be of the same make and de-
sign, otherwise the handling
characteristics of the motorcy-
cle may be different, which
could lead to an accident.


Always make sure that the valve
caps are securely installed to
prevent air pressure leakage.


Use only the tire valves and
valve cores listed below to
avoid tire deflation during a
high-speed ride.
After extensive tests, only the tires list-
ed below have been approved for this
model by Yamaha Motor Co., Ltd.
WARNING
EWA10600
This motorcycle is fitted with super-
high-speed tires. Note the following
points in order to make the most ef-
ficient use of these tires.

Use only the specified replace-
ment tires. Other tires may run
the danger of bursting at super
high speeds.


Brand-new tires can have a rela-
tively poor grip on certain road
surfaces until they have been
“broken in”. Therefore, it is ad-
visable before doing any high-
1. Tire air valve
2. Tire air valve core
3. Tire air valve cap with seal
Front tire:
Size:
120/70 ZR17 M/C (58W)
Manufacturer/model:
PIRELLI/DIABLO ROSSO
Rear tire:
Size:
190/50 ZR17 M/C (73W)
Manufacturer/model:
PIRELLI/DIABLO ROSSO
FRONT and REAR:
Tire air valve:
TR412
Va l ve c o r e :
#9100 (original)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-16
6speed riding to ride conserva-
tively for approximately 100 km
(60 mi) after installing a new tire.


The tires must be warmed up
before a high-speed run.


Always adjust the tire air pres-
sure according to the operating
conditions.
EAU21960
Cast wheels To maximize the performance, durabil-
ity, and safe operation of your vehicle,
note the following points regarding the
specified wheels.

The wheel rims should be checked
for cracks, bends or warpage be-
fore each ride. If any damage is
found, have a Yamaha dealer re-
place the wheel. Do not attempt
even the smallest repair to the
wheel. A deformed or cracked
wheel must be replaced.


The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced. An
unbalanced wheel can result in
poor performance, adverse han-
dling characteristics, and a short-
ened tire life.


Ride at moderate speeds after
changing a tire since the tire sur-
face must first be “broken in” for it
to develop its optimal characteris-
tics.
EAU42850
Clutch lever Since this model is equipped with a hy-
draulic clutch, adjusting the clutch lever
free play is not needed. However, it is
necessary to check the hydraulic sys-
tem for leakage before each ride. If the
clutch lever free play does become ex-
cessive, and shifting becomes rough or
clutch slippage occurs, causing poor
acceleration, there may be air in the
clutch system. If there is air in the hy-
draulic system, have a Yamaha dealer
bleed the system before operating the
motorcycle.
U5YUE5E0.book Page 16 Tuesday, March 17, 2009 9:02 AM