check engine YAMAHA MT-09 2019 User Guide

Instrument and control functions
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EAU57952
Ignition circuit cut-off systemThis system prevents in-gear engine
starts unless the clutch lever is pulled
and the sidestand is up. Also, it will stop
the running engine should the sides-
tand be lowered while the transmission
is in gear.
Periodically check this system via the
following procedure.TIP
This check is most reliable if per-
formed with a warmed-up engine.

See pages 4-2 and 4-3 for switchoperation information.
BS2-9-E2.book 26 ページ ２０１８年８月１０日　金曜日　午前９時３６分

Instrument and control functions
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With the engine turned off:
1. Move the sidestand down.
2. Set engine stop s witch to run position.
3. T urn m ain switch to on position.
4. Shift tr ansmission into neutr al.
5. Push the start switch.
Does the engine start?
With the engine still r unning:
6. Move the sidestand up.
7. Pull the clutch lever.
8. Shift tr ansmission into gear.
9. Move the sidestand down.
Does the en gine stall?
After the engine has stalled:
10.

Move the sidestand up.
11. Pull the clutch lever.
12. Push the start switch.
Does the engine start?
The system is OK. The motorcycle can be ridden.
YES NO
YES
NO
YES
NO
The neutral switch ma y not be working.
The motorcycle should not be ridden until
checked b y a Yamaha dealer.
The clutch s witch may not be working.
The motorcycle should not be ridden until
checked b y a Yamaha dealer.The sidestand s witch may not be working.
The motorcycle should not be ridden until
checked b y a Yamaha dealer.If a malfunction is found, have the vehicle
inspected before riding.
WARNING
BS2-9-E2.book 27 ページ ２０１８年８月１０日　金曜日　午前９時３６分

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For your safety – pre-operation checks
EAU15599
Inspect your vehicle each time you use it to make sure the vehi cle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11152
Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage.
Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided inthis manual, have the vehicle inspected by a Yamaha dealer.
Before using this vehicle, check the following points:
ITEM CHECKS PAGE
Fuel Check fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage.
Check fuel tank breather hose and overflow hose for obstructions, cracks or
damage, and check hose connections. 4-17, 4-19
Engine oil Check oil level in engine.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage. 7-11
Coolant Check coolant level in reservoir.
If necessary, add recommended coolant to specified level.
Check cooling system for leakage. 7-14
Front brake Check operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check brake pads for wear.
Replace if necessary.
Check fluid level in reservoir.
If necessary, add specified brake fluid to specified level.
Check hydraulic system for leakage. 7-21, 7-22
BS2-9-E2.book 1 ページ ２０１８年８月１０日　金曜日　午前９時３６分

Operation and important riding points
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12 ing at a speed of 10 km/h (6 mi/h)
or higher.
The quick shift indicator light
should come on when the key is
turned to “ON”, and then remain on
after the engine is started.
NOTICE
ECA22510
If a warning or indicator light does
not work as described above, see
page 4-5 for the corresponding
warning and indicator light circuitcheck.
2. Shift the transmission into the neu- tral position. The neutral indicator
light should come on. If not, ask a
Yamaha dealer to check the elec-
trical circuit.
3. Start the engine by sliding the switch toward “ ”.
If the engine fails to start, release
the start/engine stop switch, wait a
few seconds, and then try again.
Each starting attempt should be as
short as possible to preserve the
battery. Do not crank the engine
more than 10 seconds on any one
attempt.
NOTICE
ECA11043
For maximum engine life, never ac-
celerate hard when the engine iscold!
EAU77401
ShiftingShifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing hills,
etc. The gear positions are shown in
the illustration.TIP
To shift the transmission into the
neutral position ( ), press the
shift pedal down repeatedly until it
reaches the end of its travel, and
then slightly raise it.

This model is equipped with aquick shift system. (See page 3-3.)
1. Gear positions
2. Shift pedal
2
1
1
N 2 3
4
5
6
BS2-9-E2.book 2 ページ ２０１８年８月１０日　金曜日　午前９時３６分

Operation and important riding points
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12 r/min.
1600 km (1000 mi) and beyond
The vehicle can now be operated nor-
mally.
NOTICE
ECA10311

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.
EAU17214
ParkingWhen parking, stop the engine, and
then remove the key from the main
switch.
WARNING
EWA10312

Since the engine and exhaust
system can become very hot,
park in a place where pedestri-
ans or children are not likely to
touch them and be burned.

Do not park on a slope or on soft
ground, otherwise the vehicle
may overturn, increasing the
risk of a fuel leak and fire.

Do not park near grass or other
flammable materials whichmight catch fire.
BS2-9-E2.book 4 ページ ２０１８年８月１０日　金曜日　午前９時３６分

Periodic maintenance and adjustment
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EAU71033
Periodic maintenance chartsTIP
Items marked with an asteri sk should be performed by your Yamaha dealer because these items require special tools,
data, and technical skills.

From 50000 km (30000 mi), repeat the maintenance intervals starting from 10000 km (6000 mi).

The annual checks must be performed every year, except if a distance-based maintenance is performed in-stead.
EAU71051
Periodic maintenance chart fo r the emission control systemNO. ITEM CHECK OR MAINTENANCE JOB ODOMETER 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.
Replace if necessary. 
2 *Spark plugs Check condition.
Adjust gap and clean.

Replace. 
3 *Valve clearance Check and adjust. Every 40000 km (24000 mi)
4 *Fuel injection Check engine idle speed.

Check and adjust synchronization. 
5 *Exhaust system Check for leakage.
Tighten if necessary.
Replace gaskets if necessary. 
6 *Evaporative
emission control
system Check control system for damage.
Replace if necessary.

BS2-9-E2.book 3 ページ ２０１８年８月１０日　金曜日　午前９時３６分

Periodic maintenance and adjustment
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23 *Rear suspension
relay arm and
connecting arm
pivoting points Check operation.

24 Engine oil Change (warm engine before
draining).
Check oil level and vehicle for oil leakage. 
25 Engine oil filter
cartridge Replace.

26 *Cooling system Check coolant level and vehicle
for coolant leakage. 
Change. Every 3 years
27 *Front and rear brake
switches Check operation.

28 *Moving parts and
cables Lubricate.

29 *Throttle grip
housing and cable Check operation and free play.
Adjust the throttle cable free play
if necessary.
Lubricate the throttle grip housing and cable. 
30 *Lights, signals and
switches Check operation.
Adjust headlight beam.

NO. ITEM CHECK OR MAINTENANCE JOB
ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi) 10000 km
(6000 mi) 20000 km
(12000 mi) 30000 km
(18000 mi) 40000 km
(24000 mi)
BS2-9-E2.book 7 ページ ２０１８年８月１０日　金曜日　午前９時３６分

Periodic maintenance and adjustment
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EAU19653
Checking the spark plugsThe 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
Specified spark plug:
NGK/CPR9EA9
1. Spark plug gapSpark plug gap:0.8–0.9 mm (0.031–0.035 in)
Tightening torque: Spark plug:13 N·m (1.3 kgf·m, 9.6 lb·ft)
BS2-9-E2.book 10 ページ ２０１８年８月１０日　金曜日　午前９時３６分

Periodic maintenance and adjustment7-11
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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.NOTICE
ECA10841
Do not use any tools to remove or in-
stall the spark plug cap, otherwise
the ignition coil coupler may get
damaged. The spark plug cap may
be difficult to remove because the
rubber seal on the end of the cap fits
tightly. To remove the spark plug
cap, simply twist it back and forth
while pulling it out; to install it, twistit back and forth while pushing it in.
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 fol-
lowing:
Check each hose connection.

Check each hose and canister for
cracks or damage. Replace if dam-
aged.

Make sure that the canister breath-
er is not blocked, and if necessary,
clean it.
EAU1990F
Engine oilThe engine oil level should be checked
regularly. In addition, the oil must be
changed and the oil filter cartridge re-
placed at the intervals specified in the
periodic maintenance chart.NOTICE
ECA11621

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.
1. Canister
2. Canister breather
3. Fuel tank overflow hose
1
2
3
Recommended engine oil: See page 9-1.
Oil quantity: Oil change:2.40 L (2.54 US qt, 2.11 Imp.qt)
With oil filter removal: 2.70 L (2.85 US qt, 2.38 Imp.qt)
BS2-9-E2.book 11 ページ ２０１８年８月１０日　金曜日　午前９時３６分

Periodic maintenance and adjustment
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12 To check the engine oil level
1. After warming up the engine, wait a few minutes for the oil level to
settle for an accurate reading.
2. With the vehicle on a level surface, hold it upright for an accurate read-
ing.
3. Look at the check window located at the bottom-right side of the
crankcase.
TIPThe engine oil should be between theminimum and maximum level marks.
4. If the engine oil is at or below the minimum level mark, remove the
oil filler cap and add oil.
5. Check the engine oil filler cap O-ring. Replace if damaged.
6. Install the engine oil filler cap.
To change the engine oil (and filter) 1. Start the engine and allow it to idle for a few minutes to warm up the
oil, and then stop the engine.
2. Place an oil pan under the engine to collect the used oil.
3. Remove the engine oil filler cap, and then the engine oil drain bolt
and gasket.
TIPSkip steps 4–6 if the oil filter cartridge isnot being replaced.
4. Remove the oil filter cartridge with an oil filter wrench.
1. Engine oil filler cap
2. Engine oil level check window
3. Maximum level mark
4. Minimum level mark
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1. Engine oil filler cap
2. O-ring
21
1. Engine oil drain bolt
2. Gasket1
2
BS2-9-E2.book 12 ページ ２０１８年８月１０日　金曜日　午前９時３６分