2016 YAMAHA MT-25 check 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
2-2
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
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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

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
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Operation and important riding points
5-3
5
EAU16811
Tips for reducing fuel con-
sumptionFuel consumption depends largely on
your riding style. Consider the follow-
ing tips to reduce fuel consumption:
Shift up swiftly, and avoid high en-
gine speeds during acceleration.
Do not rev the engine while shift-
ing down, and avoid high engine
speeds with no load on the en-
gine.
Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffic jams, at traf-
fic lights or at railroad crossings).
EAU16842
Engine break-inThere is never a more important period
in the life of your engine than the period
between 0 and 1600 km (1000 mi). For
this reason, you should read the fol-
lowing material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1600 km (1000 mi). The various parts in
the engine wear and polish themselves
to the correct operating clearances.
During this period, prolonged full-throt-
tle operation or any condition that
might result in engine overheating
must be avoided.
EAU17094
0–1000 km (0–600 mi)
Avoid prolonged operation above 7000
r/min. NOTICE: After 1000 km (600
mi) of operation, the engine oil must
be changed and the oil filter car-
tridge or element replaced.
[ECA10303]
1000–1600 km (600–1000 mi)
Avoid prolonged operation above 8400
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.
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Periodic maintenance and adjustment
6-6
6
21*Front fork• Check operation and for oil leak-
age.√√√√
22*Shock absorber as-
sembly• Check operation and shock ab-
sorber for oil leakage.√√√√
23 Engine oil• Change. (See pages 3-4 and 6-9.)√When the oil change indicator flashes
• Check oil level and vehicle for oil
leakage.Every 5000 km (3000 mi)√
24Engine oil filter car-
tridge•Replace.√√√
25*Cooling system• Check coolant level and vehicle
for coolant leakage.√√√√√
• Change coolant. Every 3 years
26*Front and rear
brake switches• Check operation.√√√√√√
27Moving parts and
cables• Lubricate.√√√√√
28*Throttle grip• Check operation.
• Check throttle grip free play, and
adjust if necessary.
• Lubricate cable and grip housing.√√√√√
29*Lights, signals and
switches• Check operation.
• Adjust headlight beam.√√√√√√ NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING
ANNUAL
CHECK 1000 km
(600 mi)10000 km
(6000 mi)20000 km
(12000 mi)30000 km
(18000 mi)40000 km
(24000 mi)
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Periodic maintenance and adjustment
6-7
6
EAU18681
TIPAir filter
• This model’s air filter is equipped with a disposable oil-coated paper element, which must not be cleaned with com-
pressed air to avoid damaging it.
• The air filter element needs to be replaced more frequently when riding in unusually wet or dusty areas.
Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years replace the internal components of the brake master cylinders and calipers, and change the brake
fluid.
• Replace the brake hoses every four years and if cracked or damaged.
UB04E0E0.book Page 7 Wednesday, September 2, 2015 3:51 PM