YAMAHA MT-09 2018 Service Manual

Instrument and control functions
4-23
1
2
345
6
7
8
9
10
11
12
of a damping force adjusting
mechanism may not exactly match
the above specifications due to
small differences in production, the
actual number of clicks always
represents the entire adjusting
range. To obtain a precise adjust-
ment, check the number of clicks
of each damping force adjusting
mechanism and modify the specifi-
cations as necessary.

When turning a damping force ad-
juster in direction (a), the 0 click
position and the 1 click positionmay be the same.
EAU57941
Adjusting the shock absorber
assemblyThis shock absorber assembly is
equipped with a spring preload adjust-
ing ring and a rebound damping force
adjusting screw.NOTICE
ECA10102
To avoid damaging the mechanism,
do not attempt to turn beyond themaximum or minimum settings.
Spring preload
To increase the spring preload and
thereby harden the suspension, turn
the adjusting ring in direction (a). To de-
crease the spring preload and thereby
soften the suspension, turn the adjust-
ing ring in direction (b).

Align the appropriate notch in the
adjusting ring with the position in-
dicator on the shock absorber.

Use the special wrench and the
extension bar included in the own-
er’s tool kit to make the adjust-
ment.
1. Spring preload adjusting ring
2. Special wrench
3. Extension bar
4. Position indicatorSpring preload setting:
Minimum (soft):1
Standard:
4
Maximum (hard): 7
7654321
1(b) (a)
4
2
3
BS2-9-E1E0_1.book 23 ページ ２０１８年４月２７日　金曜日　午後４時５０分

Instrument and control functions
4-24
1
2
34
5
6
7
8
9
10
11
12 Rebound damping force
To increase the rebound damping force
and thereby harden the rebound damp-
ing, turn the adjusting screw in direction
(a). To decrease the rebound damping
force and thereby soften the rebound
damping, turn the adjusting screw in di-
rection (b).
TIPTo obtain a precise adjustment, it is ad-
visable to check the actual total number
of turns of the damping force adjusting
mechanism. This adjustment range
may not exactly match the specifica-
tions listed due to small differences inproduction.
WARNING
EWA10222
This shock absorber assembly con-
tains highly pressurized nitrogen
gas. Read and understand the fol-
lowing information before handling
the shock absorber assembly.
Do not tamper with or attempt to
open the cylinder assembly.

Do not subject the shock ab-
sorber assembly to an open
flame or other high heat source.
This may cause the unit to ex-
plode due to excessive gas
pressure.

Do not deform or damage the
cylinder in any way. Cylinder
damage will result in poor
damping performance.

Do not dispose of a damaged or worn-out shock absorber as-
sembly yourself. Take the shock
absorber assembly to a Yamaha
dealer for any service.
1. Rebound damping force adjusting screwRebound damping setting:
Minimum (soft):
3 turn(s) in direction (b)*
Standard: 1.5 turn(s) in direction (b)*
Maximum (hard): 0 turn(s) in direction (b)*
* With the adjusting screw fully turned
in direction (a)
1 (a)(b)
BS2-9-E1E0_1.book 24 ページ ２０１８年４月２７日　金曜日　午後４時５０分

Instrument and control functions
4-25
1
2
345
6
7
8
9
10
11
12
EAU15152
Luggage strap holdersThere is a luggage strap holder on each
passenger footrest.
EAU77390
Auxiliary DC connectorsThis vehicle is equipped with an auxilia-
ry DC connector and a grip warmer DC
connector. Consult your Yamaha deal-
er before installing any accessories.
EAU15306
SidestandThe sidestand is located on the left side
of the frame. Raise the sidestand or
lower it with your foot while holding the
vehicle upright.TIPThe built-in sidestand switch is part of
the ignition circuit cut-off system, which
cuts the ignition in certain situations.
(See the following section for an expla-
nation of the ignition circuit cut-off sys-tem.)
WARNING
EWA10242
The vehicle must not be ridden with
the sidestand down, or if the sides-
tand cannot be properly moved up
(or does not stay up), otherwise the
sidestand could contact the ground
and distract the operator, resulting
in a possible loss of control.
Yamaha’s ignition circuit cut-off
system has been designed to assist
the operator in fulfilling the respon-
sibility of raising the sidestand be-
fore starting off. Therefore, check
this system regularly and have a
1. Luggage strap holder
1
BS2-9-E1E0_1.book 25 ページ ２０１８年４月２７日　金曜日　午後４時５０分

Instrument and control functions
4-26
1
2
34
5
6
7
8
9
10
11
12 Yamaha dealer repair it if it does not
function properly.
EAU57951
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 the system via the
following procedure.TIP
This check is most reliable if per-
formed with a warmed-up engine.

See pages 4-2 and 4-4 for switchoperation information.
BS2-9-E1E0_1.book 26 ページ ２０１８年４月２７日　金曜日　午後４時５０分

Instrument and control functions
4-27
1
2
345
6
7
8
9
10
11
12
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-E1E0_1.book 27 ページ ２０１８年４月２７日　金曜日　午後４時５０分

5-1
1
2
3
45
6
7
8
9
10
11
12
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. 7-12
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-E1E0_1.book 1 ページ ２０１８年４月２７日　金曜日　午後４時５０分

For your safety – pre-operation checks
5-2
1
2
3
456
7
8
9
10
11
12
Rear 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
Clutch Check operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary. 7-20
Throttle grip Make sure that operation is smooth.
Check throttle grip free play.
If necessary, have Yamaha dealer adjust th
rottle grip free play and lubricate cable
and grip housing. 7-16, 7-26
Control cables Make sure that operation is smooth.
Lubricate if necessary. 7-26
Drive chain Check chain slack.
Adjust if necessary.
Check chain condition.
Lubricate if necessary. 7-24, 7-25
Wheels and tires Check for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary. 7-17, 7-19
Brake and shift pedals Make sure that operation is smooth.
Lubricate pedal pivoting points if necessary. 7-27
Brake and clutch levers Make sure that operation is smooth.
Lubricate lever pivoting points if necessary. 7-27
Sidestand Make sure that operation is smooth.
Lubricate pivot if necessary. 7-28
Chassis fasteners Make sure that all nuts, bolts and screws are properly tightened.
Tighten if necessary. —
ITEM CHECKS PAGE
BS2-9-E1E0_1.book 2 ページ ２０１８年４月２７日　金曜日　午後４時５０分

For your safety – pre-operation checks
5-3
1
2
3
45
6
7
8
9
10
11
12
Instruments, lights, signals
and switches Check operation.
Correct if necessary.
—
Sidestand switch Check operation of ignition circuit cut-off system.
If system is not working correctly, have Yamaha dealer check vehicle. 4-25
ITEM CHECKS PAGE
BS2-9-E1E0_1.book 3 ページ ２０１８年４月２７日　金曜日　午後４時５０分

6-1
1
2
3
4
567
8
9
10
11
12
Operation and important riding points
EAU15952
Read the Owner’s Manual carefully to
become familiar with all controls. If
there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING
EWA10272
Failure to familiarize yourself with
the controls can lead to loss of con-
trol, which could cause an accidentor injury.
EAUM3631
TIPThis model is equipped with:
a lean angle sensor to stop the en-
gine in case of a turnover. In this
case, the engine trouble warning
light will come on, but this is not a
malfunction. Turn the key to “OFF”
and then to “ON” to turn off the
warning light. Failing to do so will
prevent the engine from starting
even though the engine will crank
when pushing the start switch.

an engine auto-stop system. The
engine stops automatically if left
idling for 20 minutes. If the engine
stops, simply push the start switchto restart the engine.
EAU77060
Starting the engineIn order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:
The transmission is in the neutral
position.

The transmission is in gear with
the clutch lever pulled and the sid-
estand up.
See page 4-26 for more informa-
tion.
1. Turn the key to “ON” and make sure that the start/engine stop
switch is set to “ ”.
The following warning lights and
indicator light should come on for a
few seconds, then go off.
Oil level warning light

Coolant temperature warning
light

Engine trouble warning light

Traction control system indica-
tor light

Immobilizer system indicator
light
The ABS warning light should
come on when the key is turned to
“ON”, and then go off after travel-
BS2-9-E1E0_1.book 1 ページ ２０１８年４月２７日　金曜日　午後４時５０分

Operation and important riding points
6-2
1
2
3
4
56
7
8
9
10
11
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!
EAU77400
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 il-
lustration.TIPTo shift the transmission into the neu-
tral position, press the shift pedal down
repeatedly until it reaches the end of itstravel, and then slightly raise it.1. Shift pedal
2. Neutral position
1
N
2 3 4 5
6
1
2
BS2-9-E1E0_1.book 2 ページ ２０１８年４月２７日　金曜日　午後４時５０分