2018 YAMAHA MT-07 check engine light

Periodic maintenance an d a djustment
6-8
6
EAU19653
Checkin g the spark plug sThe spark plugs are important engine
components, which should be
checked periodically, preferably by a
Yamaha dealer. Since heat and depos- its will cause any spark plug to slowly
erode, they should be removed and
checked in accordance with the peri-
odic maintenance and lubrication
chart. In addition, the condition of the
spark plugs can reveal the condition of
the engine.
The porcelain insulator around the
center 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 engine should have the same
color. If any spark plug shows a dis-
tinctly different color, the engine could
be operating improperly. Do not at-
tempt to diagnose such problems
yourself. Instead, have a Yamaha deal-
er check the vehicle.
If a spark plug shows signs of elec-
trode 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 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
specified torque as soon as possible.NOTICE
ECA10841
Do not use any tools to remove or in-
stall the spark plu
g cap, otherwise
the i gnition coil coupler may get
d amag ed . The spark plu g cap may
b e difficult to remove because the
ru bber seal on the en d of the cap fits
ti g htly. To remove the spark plu g
cap, simply twist it back an d forth
while pullin g it out; to install it, twist
it back an d forth while pushin g it in.
Specified spark plu g:
NGK/LMAR8A-9
1. Spark plug gap
Spark plu g g ap:
0.8–0.9 mm (0.031–0.035 in)
Ti ghtenin g torque:
Spark plug: 13 N·m (1.3 kgf·m, 9.6 lb·ft)
UB4CE0E0.book Page 8 Monday, December 11, 2017 3:53 PM

Periodic maintenance an d a djustment
6-9
6
EAU76882
Canister This 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
following:
 Check each hose connection.
 Check each hose and the canister
for cracks or damage, and replace
it if necessary.
 Make sure that the end of the can-
ister breather hose is not blocked,
and clean it if necessary. 
Make sure that the canister
breather hose is routed through
the clamp.
 Make sure that the paint mark on
the canister breather hose is be-
low the clamp.
EAU60472
Engine oil an d oil filter car-
tri dg eThe engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter car-
tridge replaced at the intervals speci-
fied in the periodic maintenance and
lubrication chart.
To check the en gine oil level
1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion. A slight tilt to the side can
result in a false reading.
2. Start the engine, warm it up for several minutes, and then turn it
off.
3. Wait a few minutes until the oil set- tles, and then check the oil level
through the engine oil level check
window located at the bottom-left
side of the crankcase.TIPThe engine oil should be between the
minimum and maximum level marks.
1. Canister
2. Canister breather hose
3. Original position (paint mark)
4. Clamp
321
4
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Periodic maintenance an d a djustment
6-12
6
11. Install and tighten the engine oil
filler cap.
12. Start the engine, and then let it idle for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off
and check for the cause.
TIPAfter the engine is started, the engine
oil pressure warning light should go off.
NOTICE
ECA20860
If the oil pressure warnin g li ght flick-
ers or remains on even if the oil level
is correct, imme diately turn the en-
g ine off an d have a Yamaha dealer
check the vehicle.13. Turn the engine off, wait a few minutes until the oil settles, and
then check the oil level and cor-
rect it if necessary.
EAUS1203
CoolantThe coolant level should be checked
regularly. In addition, the coolant must
be changed at the intervals specified in
the periodic maintenance chart.TIPIf genuine Yamaha coolant is not avail-
able, use an ethylene glycol antifreeze
containing corrosion inhibitors for alu-
minum engines and mix with distilled
water at a 1:1 ratio.
EAU20097
To check the coolant level
Since the coolant level varies with en-
gine temperature, check when the en-
gine is cold.1. Park the vehicle on a level surface.
1. Engine oil filler cap
2. O-ring
21
Recommen ded coolant:
YAMALUBE coolant
Coolant quantity: Coolant reservoir (max level mark): 0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (including all routes): 1.60 L (1.69 US qt, 1.41 Imp.qt)
UB4CE0E0.book Page 12 Monday, December 11, 2017 3:53 PM

10-1
10
IndexAABS ....................................................... 3-15
ABS warning light ................................... 3-5
Air filter element and check hose,
replacing and cleaning ....................... 6-14
Auxiliary DC connector ......................... 3-25
Auxiliary light bulb, replacing ................ 6-32BBattery .................................................. 6-28
Brake and clutch levers, checking and lubricating ........................................... 6-25
Brake and shift pedals, checking and
lubricating ........................................... 6-25
Brake fluid, changing ............................ 6-21
Brake fluid level, checking .................... 6-20
Brake lever ............................................ 3-14
Brake lever free play, checking............. 6-18
Brake light switches.............................. 6-19
Brake pedal........................................... 3-14
Brake/tail light ....................................... 6-33CCables, checking and lubricating ......... 6-24
Canister................................................... 6-9
Care ........................................................ 7-1
Catalytic converter ................................ 3-19
Clutch lever ........................................... 3-13
Clutch lever free play, adjusting ........... 6-18
Coolant ................................................. 6-12
Coolant temperature warning light ......... 3-4DData recording, vehicle ........................... 9-2
Diagnostic connector.............................. 9-2
Dimmer switch ...................................... 3-13
Drive chain, cleaning and lubricating .... 6-23 Drive chain slack .................................. 6-22
EEngine break-in ...................................... 5-3
Engine oil and oil filter
cartridge ............. 6-9
Engine serial number .............................. 9-1
Engine trouble warning light ................... 3-5FFront and rear brake pads, checking ... 6-19
Front fork, checking ............................. 6-27
Fuel ....................................................... 3-16
Fuel consumption, tips for reducing ...... 5-3
Fuel tank cap ........................................ 3-16
Fuel tank overflow hose ....................... 3-18
Fuses, replacing ................................... 6-29HHandlebar switches .............................. 3-12
Hazard switch....................................... 3-13
Headlight bulb, replacing ..................... 6-31
Helmet holding cable ........................... 3-21
High beam indicator light ....................... 3-4
Horn switch .......................................... 3-13IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ............... 3-26
Immobilizer system ................................ 3-1
Immobilizer system indicator light .......... 3-5
Indicator lights and warning lights ......... 3-4LLicense plate light bulb, replacing........ 6-34
Luggage strap holders ......................... 3-24MMain switch/steering lock....................... 3-2
Maintenance and lubrication, periodic ... 6-4 Maintenance, emission control
system ..................................................6-3
Matte color, caution ................................7-1
Model label .............................................9-1
Multi-function meter unit .........................3-6
NNeutral indicator light ..............................3-4OOil pressure warning light .......................3-4PParking ....................................................5-4
Part locations ..........................................2-1
Pass switch ...........................................3-13SSafety information ...................................1-1
Seats .....................................................3-19
Shifting ....................................................5-2
Shift pedal .............................................3-14
Shock absorber assembly, adjusting ....3-23
Sidestand ..............................................3-25
Sidestand, checking and lubricating.....6-26
Spark plugs, checking ............................6-8
Specifications .........................................8-1
Start/Engine stop switch .......................3-13
Starting the engine ..................................5-1
Steering, checking ................................6-27
Storage ...................................................7-3
Storage compartment ...........................3-22
Supporting the motorcycle ...................6-35
Swingarm pivots, lubricating ................6-26TThrottle grip and cable, checking and lubricating ...........................................6-24
Throttle grip free play, checking ...........6-14
UB4CE0E0.book Page 1 Monday, December 11, 2017 3:53 PM