compression ratio YAMAHA MT-07 2016 Owners Manual

Periodic maintenance an d a djustment
6-41
6
EAU25872
Trou bleshootin gAlthough Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur
during operation. Any problem in the
fuel, compression, or ignition systems,
for example, can cause poor starting
and loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWA15142
When checkin g the fuel system, d o
not smoke, an d make sure there are
no open flames or sparks in the ar-
ea, inclu din g pilot li ghts from water heaters or furnaces. Gasoline or
g
asoline vapors can i gnite or ex-
plo de, causin g severe injury or prop-
erty damag e.
Tightenin g torques:
Axle nut:
105 Nm (10.5 m·kgf, 76 ft·lbf)
Locknut:
16 Nm (1.6 m·kgf, 12 ft·lbf)
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Specifications
8-1
8
Dimensions:Overall length:2085 mm (82.1 in)
Overall width:
745 mm (29.3 in)
Overall height: 1090 mm (42.9 in)
Seat height: 805 mm (31.7 in)
Wheelbase:
1400 mm (55.1 in)
Ground clearance: 140 mm (5.51 in)
Minimum turning radius: 2.7 m (8.86 ft)Wei ght:Curb weight:
179 kg (395 lb) (MT07)
182 kg (401 lb) (MT07A)Engine:Combustion cycle:
4-stroke
Cooling system:
Liquid cooled
Valve train: DOHC
Cylinder arrangement: Inline
Number of cylinders:
2-cylinder
Displacement: 689 cm³
Bore × stroke:
80.0 × 68.6 mm (3.15 × 2.70 in) Compression ratio:
11.5 : 1
Starting system: Electric starter
Lubrication system:
Wet sump
Engine oil:Recommended brand:
YAMALUBE
SAE viscosity grades:
10W-40
Recommended engine oil grade: API service SG type or higher, JASO
standard MA
Engine oil quantity: Oil change:
2.30 L (2.43 US qt, 2.02 Imp.qt)
With oil filter removal: 2.60 L (2.75 US qt, 2.29 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):
1.60 L (1.69 US qt, 1.41 Imp.qt)Air filter:Air filter element:Oil-coated paper elementFuel:Recommended fuel:Regular unleaded gasoline (Gasohol [E10]
acceptable)
Fuel tank capacity: 14 L (3.7 US gal, 3.1 Imp.gal) Fuel reserve amount:
2.7 L (0.71 US gal, 0.59 Imp.gal)
Fuel injection:Throttle body:
ID mark: 1WS1 00 (MT07)
1WS1 00 (MT07A)
1WS2 20 (MT07 [35 kW])
1WS2 20 (MT07A [35 kW])Spark plu g(s):Manufacturer/model:
NGK/LMAR8A-9
Spark plug gap: 0.8–0.9 mm (0.031–0.035 in)Clutch:Clutch type:Wet, multiple-discDrivetrain:Primary reduction ratio:
1.925 (77/40)
Final drive: Chain
Secondary reduction ratio: 2.688 (43/16)
Transmission type:
Constant mesh 6-speed
Gear ratio: 1st:
2.846 (37/13)
2nd: 2.125 (34/16)
3rd: 1.632 (31/19)
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