spark plugs YAMAHA MT-09 2019 Owners Manual

Table of contentsSafety information........................... 1-1
Description ....................................... 2-1
Left view ......................................... 2-1
Right view ....................................... 2-2
Controls and instruments................ 2-3
Special features ............................... 3-1
D-mode (drive mode)...................... 3-1
Traction control system .................. 3-1
Quick shift system ...... .................... 3-3
Instrument and co ntrol functions... 4-1
Immobilizer system ..... .................... 4-1
Main switch/steering lock................ 4-2
Handlebar switches ........................ 4-3
Indicator lights and warning lights ............................................ 4-5
Multi-function meter unit ................. 4-7
Clutch lever................................... 4-14
Shift pedal..... ............................ .... 4-14
Brake lever ................................... 4-14
Brake pedal .................................. 4-15
ABS .............................................. 4-15
Fuel tank cap ................................ 4-16
Fuel............................................... 4-17
Fuel tank overflow hose................ 4-19
Catalytic converter ........................ 4-19
Seat .............................................. 4-20
Storage compartment ................... 4-20
Adjusting the front fork.................. 4-21 Adjusting the shock absorber
assembly................................... 4-23
Luggage strap holders . ................ 4-24
Auxiliary DC connectors ............... 4-25
Sidestand ..................................... 4-25
Ignition circuit cut- off system ........ 4-26
For your safety – pre-operation
checks .............................................. 5-1
Operation and important riding
points ................................................ 6-1
Starting the engine ......................... 6-1
Shifting ........................................... 6-2
Tips for reducing fuel consumption ............................... 6-3
Engine break-in .............................. 6-3
Parking ........................................... 6-4
Periodic maintenance and
adjustment ....................................... 7-1
Tool kit............................................ 7-2
Periodic maintenance charts .......... 7-3
Periodic maintenance chart for the emission control system ............. 7-3
General maintenance and lubrication chart .......................... 7-5
Removing and installing the
panel ........................................... 7-9
Checking the spark plugs ............. 7-10
Canister ........................................ 7-11 Engine oil ..................................... 7-11
Why Yamalube ............................ 7-14
Coolant ........................................ 7-14
Air filter element ........................... 7-16
Checking the engine idling
speed............ ............................ 7-16
Checking the throttle grip free play ........................................... 7-16
Valve clearance ........................... 7-17
Tires ............................................. 7-17
Cast wheels ................................. 7-19
Adjusting the clutch lever free play ........................................... 7-20
Checking the brake lever free
play ........................................... 7-20
Brake light switches ..................... 7-21
Checking the front and rear
brake pads................................ 7-21
Checking the brake fluid level ...... 7-22
Changing the brake fluid .............. 7-23
Drive chain slack.......................... 7-24
Cleaning and lubricating the drive chain ................................ 7-25
Checking and lubricating the cables ....................................... 7-26
Checking and lubricating the throttle grip and cable ............... 7-26
Checking and lubricating the
brake and shift pedals .............. 7-27
Checking and lubricating the brake and clutch levers ............ 7-27BS2-9-E2.book 1 ページ ２０１８年８月１０日　金曜日　午前９時３６分

Periodic maintenance and adjustment
7-3
1
2
3
4
5
678
9
10
11
12
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
7-10
1
2
3
4
5
67
8
9
10
11
12
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 adjustment7-37
1
2
3
4
5
678
9
10
11
12
EAU42365
Troubleshooting chartsStarting problems or poor engine performance
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the battery.
Supply fuel.
The engine does not start.
Check the battery.
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.
Operate the electric starter.4. Compression
There is compression.
There is no compression.
The engine does not start.
Have a Yamaha dealer check the vehicle.Have a Yamaha dealer check the vehicle.
The engine does not start.
Check the compression.
Operate the electric starter.2. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The engine does not start.
Check the ignition.
The battery is good.Check the battery lead connections,
and have a Yamaha dealer charge
the battery if necessary.
DryWet
Operate the electric starter.
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11-1
1
2
3
4
5
6
7
8
9
1011
12
IndexAABS ....................................................... 4-15
ABS warning light.................................... 4-6
Air filter element .................................... 7-16
Auxiliary DC connectors........................ 4-25BBattery................................................... 7-30
Brake and clutch levers, checking and lubricating ........................................... 7-27
Brake and shift pedals, checking and
lubricating ........................................... 7-27
Brake fluid, changing ............................ 7-23
Brake fluid level, checking .................... 7-22
Brake lever ............................................ 4-14
Brake lever free play, checking ............. 7-20
Brake light switches .............................. 7-21
Brake pedal ........................................... 4-15CCables, checking and lubricating .......... 7-26
Canister................................................. 7-11
Care ........................................................ 8-1
Catalytic converter ................................ 4-19
Clutch lever ........................................... 4-14
Clutch lever free play, adjusting ............ 7-20
Coolant.................................................. 7-14
Coolant temperature warning light .......... 4-5DData recording, vehicle ......................... 10-2
Diagnostic connector ............................ 10-2
Dimmer switch ........................................ 4-4
D-mode (drive mode) .............................. 3-1
Drive chain, cleaning and lubricating .... 7-25
Drive chain slack ................................... 7-24
Drive mode switch................................... 4-4
EEngine break-in ...................................... 6-3
Engine idling speed, checking .............. 7-16
Engine oil .............................................. 7-11
Engine serial number............................ 10-1
Engine trouble warning light ................... 4-6FFront and rear brake pads, checking .... 7-21
Front fork, adjusting .............................. 4-21
Front fork, checking .............................. 7-29
Fuel....................................................... 4-17
Fuel consumption, tips for reducing........ 6-3
Fuel tank cap ........................................ 4-16
Fuel tank overflow hose........................ 4-19
Fuses, replacing ................................... 7-31HHandlebar switches ................................ 4-3
Hazard switch ......................................... 4-4
High beam indicator light ........................ 4-5
Horn switch ............................................. 4-4IIdentification numbers .......................... 10-1
Ignition circuit cut-off system ................ 4-26
Immobilizer system ................................. 4-1
Immobilizer system indicator light........... 4-6
Indicator lights and warning lights .......... 4-5LLuggage strap holders .......................... 4-24MMain switch/steering lock........................ 4-2
Maintenance and lubrication, periodic .... 7-5
Maintenance, emission control system... 7-3
Matte color, caution ................................ 8-1
Model label ........................................... 10-2 Multi-function meter unit .......................... 4-7
NNeutral indicator light .............................. 4-5OOil level warning light .............................. 4-5PPanel, removing and installing ................ 7-9
Parking .................................................... 6-4
Part locations .......................................... 2-1
Pass switch ............................................. 4-4QQuick shift indicator light ......................... 4-6
Quick shift system ................................... 3-3SSafety information ................................... 1-1
Seat ....................................................... 4-20
Shifting .................................................... 6-2
Shift pedal ............................................. 4-14
Shock absorber assembly, adjusting .... 4-23
Sidestand .............................................. 4-25
Sidestand, checking an
d lubricating...... 7-28
Spark plugs, checking ........................... 7-10
Special features ...................................... 3-1
Specifications .......................................... 9-1
Starting the engine .................................. 6-1
Steering, checking................................. 7-29
Stop/Run/Start switch.............................. 4-4
Storage.................................................... 8-3
Storage compartment............................ 4-20
Supporting the motorcycle .................... 7-35
Swingarm pivots, lubricating ................. 7-28TThrottle grip and cable, checking and
lubricating ........................................... 7-26
BS2-9-E2.book 1 ページ ２０１８年８月１０日　金曜日　午前９時３６分