radiator cap YAMAHA MT-10 2018 Owners Manual

Periodic maintenance and adjustment
7-14
1
2
3
4
5
67
8
9
10
11
12
EAU20071
CoolantThe coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU20096
Checking the coolant level 1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion.TIP
The coolant level must be checked
on a cold engine since the level
varies with engine temperature.

Make sure that the vehicle is posi-
tioned straight up when checking
the coolant level. A slight tilt to theside can result in a false reading.
2. Check the coolant level in the cool- ant reservoir.
TIPThe coolant should be between theminimum and maximum level marks. 3. If the coolant is at or below the
minimum level mark, remove the
reservoir cap. WARNING! Re-
move only the coolant reservoir
cap. Never attempt to remove
the radiator cap when the en-
gine is hot.
[EWA15162]
4. Add coolant to the maximum level mark, and then install the reservoir
cap. NOTICE: If coolant is not
available, use distilled water or
soft tap water instead. Do not
use hard water or salt water
since it is harmful to the engine.
If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the cooling system will not
be protected against frost and
corrosion. If water has been
added to the coolant, have a
Yamaha dealer check the anti-
freeze content of the coolant as
soon as possible, otherwise the
1. Maximum level mark
2. Minimum level mark
21
1. Coolant reservoir cap
1
B67-9-E2.book 14 ページ ２０１８年６月５日　火曜日　午前９時７分

Periodic maintenance and adjustment
7-36
1
2
3
4
5
67
8
9
10
11
12 Engine overheating
WARNING
EWAT1041

Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.

Place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the de-
tent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the capwhile turning it counterclockwise, and then remove the cap.
TIPIf coolant is not available, tap water can be temporarily us
ed instead, provided that it is changed to the recommended coolantas soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
B67-9-E2.book 36 ページ ２０１８年６月５日　火曜日　午前９時７分

9-1
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7
8910
11
12
Specifications
EAU70621
Dimensions:Overall length:2095 mm (82.5 in)
Overall width: 800 mm (31.5 in)
Overall height: 1110 mm (43.7 in)
Seat height:
825 mm (32.5 in)
Wheelbase: 1400 mm (55.1 in)
Ground clearance: 130 mm (5.12 in)
Minimum turning radius:
3.3 m (10.83 ft)Weight:Curb weight:210 kg (463 lb)Engine:Combustion cycle:4-stroke
Cooling system: Liquid cooled
Valve train:
DOHC
Cylinder arrangement: Inline
Number of cylinders: 4-cylinder
Displacement:
998 cm
3
Bore  stroke:
79.0  50.9 mm (3.11  2.00 in) Compression ratio:
12.0 : 1
Starting system:
Electric starter
Lubrication system: Wet sump
Engine oil:Recommended brand:
YAMALUBE
Type: Full synthetic
SAE viscosity grades: 10W-40
Recommended engine oil grade:
API service SG type or higher, JASO stan-
dard MA
Engine 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)Coolant quantity:Coolant reservoir (up to the maximum level
mark): 0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (including all routes): 2.25 L (2.38 US qt, 1.98 Imp.qt)Air filter:Air filter element:Oil-coated paper elementFuel:Recommended fuel:
Premium unleaded gasoline (Gasohol
[E10] acceptable) Fuel tank capacity:
17 L (4.5 US gal, 3.7 Imp.gal)
Fuel reserve amount:
4.0 L (1.06 US gal, 0.88 Imp.gal)
Fuel injection:Throttle body:ID mark:B671 00Spark plug(s):Manufacturer/model:
NGK/LMAR9E-J
Spark plug gap: 0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:
Wet, multiple-discDrivetrain:Primary reduction ratio:1.634 (67/41)
Final drive:
Chain
Secondary reduction ratio: 2.688 (43/16)
Transmission type: Constant mesh 6-speed
Gear ratio:
1st:2.600 (39/15)
2nd:
2.176 (37/17)
3rd: 1.842 (35/19)
4th: 1.579 (30/19)
B67-9-E2.book 1 ページ ２０１８年６月５日　火曜日　午前９時７分