2016 YAMAHA MT-25 engine oil

Table of contentsSafety information............................ 1-1
Description....................................... 2-1
Left view ......................................... 2-1
Right view ....................................... 2-2
Controls and instruments ............... 2-3
Instrument and control functions... 3-1
Main switch/steering lock............... 3-1
Indicator lights and warning
lights............................................ 3-2
Multi-function meter unit ................ 3-4
Handlebar switches ...................... 3-10
Clutch lever .................................. 3-11
Shift pedal .................................... 3-12
Brake lever.................................... 3-12
Brake pedal .................................. 3-12
Fuel tank cap ................................ 3-13
Fuel ............................................... 3-13
Fuel tank breather hose and
overflow hose ............................ 3-15
Catalytic converter ....................... 3-15
Seats ............................................ 3-16
Helmet holders ............................. 3-17
Storage compartment .................. 3-18
Adjusting the shock absorber
assembly ................................... 3-18
Luggage strap holders ................. 3-19
Sidestand ..................................... 3-19
Ignition circuit cut-off system ....... 3-20For your safety – pre-operation
checks............................................... 4-1
Operation and important riding
points................................................. 5-1
Starting the engine .......................... 5-1
Shifting ............................................ 5-2
Tips for reducing fuel
consumption ................................ 5-3
Engine break-in ............................... 5-3
Parking ............................................ 5-4
Periodic maintenance and
adjustment........................................ 6-1
Owner’s tool kit ............................... 6-1
Periodic maintenance chart for
the emission control system ........ 6-3
General maintenance and
lubrication chart ........................... 6-4
Checking the spark plugs ............... 6-8
Engine oil and oil filter cartridge...... 6-9
Coolant.......................................... 6-12
Replacing the air filter element
and cleaning the check hose..... 6-13
Checking the throttle grip
free play ..................................... 6-15
Valve clearance ............................. 6-15
Tires .............................................. 6-15
Cast wheels................................... 6-17
Adjusting the clutch lever
free play ..................................... 6-17Checking the brake lever
free play..................................... 6-18
Brake light switches ..................... 6-19
Checking the front and rear
brake pads ................................ 6-19
Checking the brake fluid level ...... 6-20
Changing the brake fluid .............. 6-21
Drive chain slack........................... 6-21
Cleaning and lubricating the
drive chain ................................. 6-23
Checking and lubricating the
cables ........................................ 6-24
Checking and lubricating the
throttle grip and cable ............... 6-24
Checking and lubricating the
brake and shift pedals............... 6-24
Checking and lubricating the
brake and clutch levers ............. 6-25
Checking and lubricating the
sidestand................................... 6-26
Lubricating the swingarm
pivots......................................... 6-26
Checking the front fork ................. 6-26
Checking the steering................... 6-27
Checking the wheel bearings ....... 6-27
Battery .......................................... 6-28
Replacing the fuses ...................... 6-29
Replacing the headlight bulb ........ 6-30
Auxiliary light ................................ 6-31
Tail/brake light .............................. 6-31UB04E0E0.book Page 1 Wednesday, September 2, 2015 3:51 PM

Description
2-1
2
EAU10411
Left view
1
762345
98
1. Coolant reservoir (page 6-12)
2. Main fuse (page 6-29)
3. Owner’s tool kit (page 6-1)
4. Passenger seat lock (page 3-16)
5. Storage compartment (page 3-18)
6. Shock absorber assembly spring preload adjusting ring (page 3-18)
7. Shift pedal (page 3-12)
8. Engine oil drain bolt (page 6-9)9. Engine oil filter cartridge (page 6-9)
UB04E0E0.book Page 1 Wednesday, September 2, 2015 3:51 PM

Description
2-2
2
EAU10421
Right view
1
98 76 5 23
4
1. Fuse box (page 6-29)
2. Battery (page 6-28)
3. Fuel tank cap (page 3-13)
4. Headlight (page 6-30)
5. Engine oil filler cap (page 6-9)
6. Engine oil level check window (page 6-9)
7. Brake pedal (page 3-12)
8. Rear brake light switch (page 6-19)9. Rear brake fluid reservoir (page 6-20)UB04E0E0.book Page 2 Wednesday, September 2, 2015 3:51 PM

Instrument and control functions
3-2
3 To unlock the steering
1. Insert the key.
2. With the key in the “LOCK” posi-
tion, push the key in and turn it
to “ ”.
EAU49398
Indicator lights and warning
lights
EAU11022
Turn signal indicator light “ ”
This indicator light flashes when a turn
signal light is flashing.
EAU11061
Neutral indicator light “ ”
This indicator light comes on when the
transmission is in the neutral position.
EAU11081
High beam indicator light “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU62530
Oil pressure warning light “ ”
This warning light comes on if the en-
gine oil pressure is low.
The electrical circuit of the warning
light can be checked by turning the key
to “ ”. The warning light should come
on and remain on until the engine is
started.
If the warning light does not come on
initially when the key is turned to “ ”,
have a Yamaha dealer check the elec-
trical circuit.NOTICE
ECA21210
If the warning light comes on when
the engine is running, stop the en-
gine immediately and check oil level.
If the oil level is below the minimum
level, add sufficient oil of the recom-
mended t y p e t o r a i s e i t u p t o t h e c o r -
rect level. If the oil pressure warning
light remains on even if the oil level
1. Push.
2. Turn.12
1. Neutral indicator light Ž
2. High beam indicator light Ž
3. Turn signal indicator light Ž
4. Shift timing indicator light
5. Oil pressure warning light Ž
6. Engine trouble warning light Ž
6
5
3
1
2
4
UB04E0E0.book Page 2 Wednesday, September 2, 2015 3:51 PM

Instrument and control functions
3-3
3is correct, immediately turn the en-
gine off and have a Yamaha dealer
check the vehicle.
TIPIf the warning light does not go off after
starting the engine, check the engine
oil level and add oil if necessary. (See
page 6-9.)
If the warning light remains on after
adding engine oil, have a Yamaha
dealer check the vehicle.
EAU62790
Engine trouble warning light “ ”
This warning light comes on or flashes
if a problem is detected in the electrical
circuit monitoring the engine. If this oc-
curs, have a Yamaha dealer check the
self-diagnosis system. (See page 3-10
for an explanation of the self-diagnosis
device.)
The electrical circuit of the warning
light can be checked by turning the key
to “ ”. The warning light should come
on for a few seconds, and then go off.If the warning light does not come on
initially when the key is turned to “ ”,
or if the warning light remains on, have
a Yamaha dealer check the electrical
circuit.
TIPThe engine trouble warning light will
come on while the start switch is
pushed, but this does not indicate a
malfunction.
EAU62470
Shift timing indicator light
This indicator light can be set to come
on and go off at the desired engine
speeds and is used to inform the rider
when it is time to shift to the next high-
er gear. (See page 3-8 for a more de-
tailed explanation of this indicator light
and on how to set it.)
The electrical circuit of the indicator
light can be checked by turning the key
to “ ”. The indicator light should
come on for a few seconds, and then
go off.If the indicator light does not come on
initially when the key is turned to “ ”,
or if the indicator light remains on, have
a Yamaha dealer check the electrical
circuit.
UB04E0E0.book Page 3 Wednesday, September 2, 2015 3:51 PM

Instrument and control functions
3-6
3 If the last segment on the right flashes,
stop the vehicle, then stop the engine,
and let the engine cool. (See page
6-39.)
NOTICE
ECA10022
Do not continue to operate the en-
gine if it is overheating.TIPThe coolant temperature varies with
changes in the weather and engine
load.Transmission gear displayThis display shows the selected gear.
The neutral position is indicated by “ ”
and by the neutral indicator light.
Multi-function display
The multi-function display is equipped
with the following:
an odometer
two tripmeters
a fuel reserve tripmeter
an instantaneous fuel consump-
tion display
an average fuel consumption dis-
play
an oil change tripmeter
an oil change indicator
The odometer shows the total distance
traveled by the vehicle.The tripmeters show the distance trav-
eled since they were last set to zero.
Push the “SEL” button to switch the
display between the odometer mode
“ODO”, tripmeter modes “TRIP 1” and
“TRIP 2”, instantaneous fuel consump-
tion mode “km/L” or “L/100 km”, aver-
age fuel consumption mode “AVE_ _._
km/L” or “AVE_ _._ L/100 km” and oil
change tripmeter mode “OIL TRIP” in
the following order:
ODO → TRIP 1 → TRIP 2 → km/L or
L/100 km → AVE_ _._ km/L or AVE_ _._
L/100 km → OIL TRIP → ODO
The fuel reserve tripmeter shows the
distance traveled since the fuel level
warning light came on.
If the left segment of the fuel meter
starts flashing, the display automati-
cally changes to the fuel reserve trip-
meter mode “TRIP F” and starts
counting the distance traveled from
that point. In that case, push the “SEL”
button to switch the display between
the various tripmeter, odometer, in-1. Neutral indicator light “ ”
2. Transmission gear display
1
2
1. Multi-function display
1
UB04E0E0.book Page 6 Wednesday, September 2, 2015 3:51 PM

Instrument and control functions
3-8
3 To switch between the average fuel
consumption displays, push the “SEL”
button for one second.
To reset the average fuel consumption
display, push the “RES” button for at
least one second.
TIPAfter resetting the average fuel con-

the vehicle has traveled 1 km (0.6 mi).Oil change tripmeter
The oil change tripmeter shows the
distance traveled since it was last reset
(i.e., since the last oil change).The oil change indicator “OIL” will flash
at the initial 1000 km (600 mi), then at
5000 km (3000 mi) and every 5000 km
(3000 mi) thereafter to indicate that the
engine oil should be changed.
After changing the engine oil, reset the
oil change tripmeter and the oil change
indicator. To reset them both, select
the oil change tripmeter, and then push
the “RES” button for one second.
Then, while “OIL” and the oil change
tripmeter are flashing, push the “RES”
button for three seconds. The oil
change indicator will be reset.
If the engine oil is changed before the
oil change indicator comes on (i.e., be-
fore the periodic oil change interval has
been reached), the oil change tripmeter
must be reset for the next periodic oil
change to be indicated at the correct
time.Shift timing indicator light
The shift timing indicator light has four
settings which can be adjusted.
Flashing pattern: this function al-
lows you to choose whether or not
the indicator light will come on and
whether it should flash or stay on
when activated.
Activation point: this function al-
lows you to select the engine
speed at which the indicator light
is activated.
Deactivation point: this function
allows you to select the engine
speed at which the indicator light
is deactivated.1. Oil change indicator “OIL”
2. Oil change tripmeter
2
1
1. Shift timing indicator light
2. Brightness level display
1
2
UB04E0E0.book Page 8 Wednesday, September 2, 2015 3:51 PM

For your safety – pre-operation checks
4-1
4
EAU15599
Inspect your vehicle each time you use it to make sure the vehicle 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 in
this 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.3-13, 3-15
Engine oil• Check oil level in engine.
• If necessary, add recommended oil to specified level.
• Check vehicle for oil leakage.6-9
Coolant• Check coolant level in reservoir.
• If necessary, add recommended coolant to specified level.
• Check cooling system for leakage.6-12
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.6-19, 6-20
UB04E0E0.book Page 1 Wednesday, September 2, 2015 3:51 PM