compression ratio YAMAHA TT-R50E 2016 Owners Manual

Periodic maintenance an d a djustment
7-33
7 3. Connect the brake rod to the
brake camshaft lever, and then in-
stall the brake pedal free play ad-
justing nut onto the brake rod.
4. Lower the rear wheel so that it is on the ground, and then put the
sidestand down.
5. Adjust the drive chain slack. (See page 7-20.)
6. Tighten the axle nut to the speci- fied torque.
7. Adjust the brake pedal free play. (See page 7-18.)
EAU25852
Trou bleshootin g
Although 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 chart
represents a quick and easy procedure
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 torque:
Axle nut: 60 Nm (6.0 m·kgf, 43 ft·lbf)
U2CJ83E0.book Page 33 Friday, June 26, 2015 10:36 AM

Specifications
9-1
9
Dimensions:
Overall length:1305 mm (51.4 in)
Overall width:
595 mm (23.4 in)
Overall height: 795 mm (31.3 in)
Seat height: 555 mm (21.9 in)
Wheelbase:
925 mm (36.4 in)
Ground clearance: 135 mm (5.31 in)
Wei ght:
Curb weight:
57 kg (126 lb)
Technical permissible mass (Maximum load +
Curb weight): 97 kg (214 lb)
Noise an d vi bration level:
Noise level (77/311/EEC):
76.7 dB(A) at 4250 r/min (TT-R50E)
Vibration on seat (EN1032, ISO5008): Will not exceed 0.5 m/s² (TT-R50E)
Vibration on handlebar (EN1032, ISO5008):
Will not exceed 2.5 m/s² (TT-R50E)
Engine:
Combustion cycle:
4-stroke
Cooling system:
Air cooled
Valve train: SOHC
Number of cylinders: Single cylinder
Displacement:
49 cm³
Bore × stroke:
36.0 × 48.6 mm (1.42 × 1.91 in)
Compression ratio: 9.5 : 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:
0.80 L (0.85 US qt, 0.70 Imp.qt)
Air filter:
Air filter element: Wet element
Fuel:
Recommended fuel:Regular unleaded gasoline (Gasohol [E10]
acceptable)
Fuel tank capacity:
3.1 L (0.8 US gal, 0.7 Imp.gal)
Fuel reserve amount: 0.4 L (0.11 US gal, 0.09 Imp.gal)
Car buretor:
Type × quantity:
VM11 × 1
Spark plu g(s):
Manufacturer/model:
NGK/CR7HSA
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Clutch:
Clutch type:Wet, centrifugal, multiple-disc
Drivetrain:
Primary reduction ratio:3.722 (67/18)
Final drive: Chain
Secondary reduction ratio:
2.846 (37/13)
Transmission type: Constant mesh 3-speed
Gear ratio: 1st:3.250 (39/12)
2nd: 1.737 (33/19)
3rd:
1.217 (28/23)
Chassis:
Frame type: Backbone
Caster angle:
25.50 °
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