2018 YAMAHA MT-10 engine oil

Periodic maintenance and adjustment
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EAU67110
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.
NOTICE
ECA10841
Do not use any tools to remove or in-
stall the spark plug cap, otherwise
the ignition coil coupler may get
damaged. The spark plug cap may
be difficult to remove because the
rubber seal on the end of the cap fits
tightly. To remove the spark plug
cap, simply twist it back and forth
while pulling it out; to install it, twistit back and forth while pushing it in.
Specified spark plug:
NGK/LMAR9E-J
1. Spark plug gapSpark plug gap:0.6–0.7 mm (0.024–0.028 in)
Tightening torque: Spark plug (new):18 N·m (1.8 kgf·m, 13 lb·ft)
Spark plug (after checking):
13 N·m (1.3 kgf·m, 9.6 lb·ft)
1
1
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Periodic maintenance and adjustment
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EAU36112
CanisterThis 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 fol- lowing:

Check each hose connection.

Check each hose and canister for
cracks or damage. Replace if dam-
aged.

Make sure that the canister breath-
er is not blocked, and if necessary,
clean it.
EAU73972
Engine oilThe 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 chart.NOTICE
ECA11621

In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a high-
er quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.

Make sure that no foreign mate-
1. Canister
1. Canister breather
1
1
Recommended engine oil:
Full synthetic
10W-40
Oil quantity: Oil change:
3.90 L (4.12 US qt, 3.43 Imp.qt)
With oil filter removal: 4.10 L (4.33 US qt, 3.61 Imp.qt)
B67-9-E2.book 10 ページ ２０１８年６月５日　火曜日　午前９時７分

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rial enters the crankcase.
To check the engine oil level 1. After warming up the engine, wait a few minutes for the oil to settle.
2. With the vehicle on a level surface, hold it upright for an accurate read-
ing.
3. Check the oil level through the check window located at the bot-
tom of the left-side of the crank-
case.
TIPThe engine oil should be between theminimum and maximum level marks. 4. If the engine oil is at or below the
minimum level mark, remove the
oil filler cap and add oil 5. Check the O-ring for damage, and
replace if necessary.
6. Install the engine oil filler cap.
To change the engine oil (and filter) 1. Start the engine, warm it up for several minutes, and then turn it
off.
2. Place an oil pan under the engine to collect the used oil.
3. Remove the engine oil filler cap, the engine oil drain bolt and its
gasket to drain the oil from the
crankcase.
1. Engine oil level check window
2. Maximum level mark
3. Minimum level mark
1. Engine oil filler cap
2. O-ring
2
1
312
1. Engine oil filler cap
1
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TIPSkip steps 4–6 if the oil filter cartridge isnot being replaced. 4. Remove the oil filter cartridge with an oil filter wrench.
TIPAn oil filter wrench is available at aYamaha dealer.
5. Apply a thin coat of clean engine oil to the O-ring of the new oil filter
cartridge.
TIPMake sure that the O-ring is properlyseated.
6. Install a new oil filter cartridge, and then tighten to the specified
torque.
1. Engine oil drain bolt
2. Gasket
12
1. Oil filter cartridge
2. Oil filter wrench1
2
1. O-ring
1. Torque wrench
1
1
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7. Install the engine oil drain bolt and
its new gasket, and then tighten
the bolt to the specified torque.
8. Refill with the specified amount of the recommended engine oil.
TIPWipe off any spilled oil before startingthe engine.
9. Check the O-ring for damage, and then install the oil filler cap. 10. Start the engine and let it idle for
several minutes while checking for
oil leakage. If any leakage is
found, immediately stop the en-
gine and check for the cause.
TIPAfter the engine is started, the oil pres-
sure warning light should go off if the oillevel is sufficient.NOTICE
ECA20860
If the oil pressure warning light flick-
ers or remains on even if the oil level
is correct, immediately turn the en-
gine off and have a Yamaha dealer
check the vehicle.
11. Turn the engine off, wait a few min- utes until the oil settles, and then
check the oil level one last time.
Tightening torque:Oil filter cartridge: 17 N·m (1.7 kgf·m, 13 lb·ft)
Tightening torque: Engine oil drain bolt: 23 N·m (2.3 kgf·m, 17 lb·ft)
1. Engine oil filler cap
2. O-ring
12
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Periodic maintenance and adjustment
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12 3. Tighten the axle nut, then the lock-
nuts to their specified torques.
4. Make sure that the drive chain pull- ers are in the same position, the
drive chain slack is correct, and
the drive chain moves smoothly.
EAU23026
Cleaning and lubricating the
drive chainThe drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.NOTICE
ECA10584
The drive chain must be lubricated
after washing the motorcycle, ridingin the rain or riding in wet areas.
1. Clean the drive chain with kero- sene and a small soft brush.
NOTICE: To prevent damaging
the O-rings, do not clean the
drive chain with steam cleaners,
high-pressure washers or inap-
propriate solvents.
[ECA11122]
2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive chain with a special O-ring chain
lubricant. NOTICE: Do not use
engine oil or any other lubri-
cants for the drive chain, as they may contain substances that
could damage the O-rings.
[ECA11112]
1. Axle nut
2. Drive chain puller
3. Drive chain slack adjusting bolt
4. Locknut
5. Alignment marksTightening torques:
Axle nut:190 N·m (19 kgf·m, 140 lb·ft)
Locknut: 16 N·m (1.6 kgf·m, 12 lb·ft)
1
2 3
45
(a)
(b)
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Motorcycle care and storage
EAU37834
Matte color cautionNOTICE
ECA15193
Some models are equipped with
matte colored finished parts. Be
sure to consult a Yamaha dealer for
advice on what products to use be-
fore cleaning the vehicle. Using a
brush, harsh chemical products or
cleaning compounds when cleaning
these parts will scratch or damage
their surface. Wax also should not
be applied to any matte colored fin-ished parts.
EAU79030
CareWhile the open design of a motorcycle
reveals the attractiveness of the tech-
nology, it also makes it more vulnera-
ble. Rust and corrosion can develop
even if high-quality components are
used. A rusty exhaust pipe may go un-
noticed on a car, however, it detracts
from the overall appearance of a motor-
cycle. Frequent and proper care does
not only comply with the terms of the
warranty, but it will also keep your mo-
torcycle looking good, extend its life
and optimize its performance.
Before cleaning 1. Cover the muffler outlet with a plastic bag after the engine has
cooled down.
2. Make sure that all caps and covers as well as all el ectrical couplers
and connectors, including the
spark plug caps, are tightly in-
stalled.
3. Remove extremely stubborn dirt, like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such prod- ucts onto seals, gaskets, sprock-
ets, the drive chain and wheel
axles. Always rinse the dirt and de-
greaser off with water.
Cleaning
NOTICE
ECA24070

Avoid using strong acidic wheel
cleaners or engine degreasers.
If such products are used on
hard-to-remove dirt, do not
leave the cleaner on the affected
area any longer than instructed.
Also, thoroughly rinse the area
off with water, immediately dry
it, and then apply a corrosion
protection spray.

Improper cleaning can damage
such parts as cowlings and pan-
els, the instrument panel and
display, wheels, headlight lens-
es, plastic or carbon fiber parts,
etc., and the mufflers. Use only
a soft, clean cloth or sponge to
clean such parts. However, if
such parts cannot be thorough-
ly cleaned, water and diluted
mild detergent may be used. Be
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Motorcycle care and storage
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12 sure to rinse off any detergent
residue using plenty of water, as
it is harmful to plastic parts.

Do not use any harsh chemical
products on plastic parts or the
muffler. Be sure to avoid using
cloths or sponges which have
been in contact with strong or
abrasive cleaning products, sol-
vent or thinner, fuel (gasoline),
rust removers or inhibitors,
brake fluid, antifreeze or electro-
lyte.

Do not use high-pressure wash-
ers or steam-jet cleaners since
they cause water seepage and
deterioration in the following ar-
eas: seals (of wheel and swing-
arm bearings, fork and brakes),
storage compartments, electric
components (couplers, connec-
tors, instruments, switches and
lights), breather hoses andvents.
After normal use
Remove dirt with warm water, a mild
detergent, and a soft, clean sponge, and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush
for hard-to-reach areas. Stubborn dirt
and insects will come off more easily if
the area is covered with a wet cloth for
a few minutes before cleaning.
After riding in the rain, near the sea or
on salt-sprayed roadsSince sea salt or salt sprayed on roads
during winter are extremely corrosive in
combination with water, carry out the
following steps after each ride in the
rain, near the sea or on salt-sprayed
roads.TIPSalt sprayed on roads in the winter mayremain well into spring.
1. Clean the motorcycle with cold wa- ter and a mild detergent, after the
engine has cooled down.
NOTICE: Do not use warm water
since it increases the corrosive
action of the salt.
[ECA10792]
2. After drying the motorcycle, apply a corrosion protection spray on all
metal, including chrome- and nick-
el-plated, surfaces (except the tita- nium muffler) to prevent corrosion.
Cleaning the titanium muffler
This model is equipped with a titanium
muffler, which requires the following
special care.
Use only a soft, clean cloth or
sponge with mild detergent and
water to clean the titanium muffler.
However, if the muffler cannot be
thoroughly cleaned with mild de-
tergent, alkaline products and a
soft brush may be used.

Never use compounds or other
special treatments to clean the tita-
nium muffler, as they will remove
the finish on the outer surface of
the muffler.

Even the smallest amounts of oil,
such as from oily towels or finger-
prints, will leave stains on the tita-
nium muffler, which can be
removed with a mild detergent.

Note that the thermally induced
discoloring of the portion of the ex-
haust pipe leading into the titanium
muffler is normal and cannot be re-
moved.
B67-9-E2.book 2 ページ ２０１８年６月５日　火曜日　午前９時７分