engine YAMAHA TTR50 2010 Service Manual

SPECIFICATIONS
9-1
9
Dimensions:Overall length:
1305 mm (51.4 in)
Overall width:
595 mm (23.4 in)
Overall height:
775 mm (30.5 in)
Seat height:
555 mm (21.9 in)
Wheelbase:
925 mm (36.4 in)
Ground clearance:
135 mm (5.31 in)
Minimum turning radius:
1400 mm (55.1 in)Weight:With oil and fuel:
57.0 kg (126 lb)Noise and vibration level:Noise level (77/311/EEC):
TT-R50E 76.7 dB(A)
Vibration on seat (EN1032, ISO5008):
TT-R50E Will not exceed 0.5 m/s²
Vibration on handlebar (EN1032, ISO5008):
TT-R50E Will not exceed 2.5 m/s²Engine:Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
49 cm³
Bore × stroke:
36.0 × 48.6 mm (1.42 × 1.91 in)Compression ratio:
9.50 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-30, 10W-40, 10W-50, 15W-40,
20W-40 or 20W-50
Recommended engine oil grade:
API service SG type or higher, JASO
standard MA
Engine oil quantity:
Periodic oil change:
0.80 L (0.85 US qt, 0.70 Imp.qt)Air filter:Air filter element:
Wet element
Fuel:Recommended fuel:
TT-R50E Regular unleaded gasoline only
TT-R50EZ Regular unleaded gasoline only
(CAN)
TT-R50EZ Unleaded gasoline only
(AUS)(NZL)
Fuel tank capacity:
3.1 L (0.82 US gal, 0.68 Imp.gal)
Fuel reserve amount:
0.4 L (0.11 US gal, 0.09 Imp.gal)Carburetor:Type × quantity:
VM11 x 1Spark plug (s):Manufacturer/model:
NGK/CR7HSA
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:
Wet, multiple-disc and centrifugal
automaticTransmission:Primary reduction system:
Spur gear
Primary reduction ratio:
67/18 (3.722)
Secondary reduction system:
Chain drive
Secondary reduction ratio:
37/13 (2.846)
Transmission type:
Constant mesh 3-speed
–20–10 0
1020 30 40 50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50
10 30 50 70 90 110 0 130 ˚F
U1P684E0.book Page 1 Tuesday, April 28, 2009 10:22 AM

INDEXAAir filter element, cleaning....................... 7-8BBattery................................................... 7-24
Brake lever .............................................. 4-3
Brake lever, checking and lubricating ... 7-21
Brake lever free play, adjusting............. 7-16
Brake pedal ............................................. 4-3
Brake pedal, checking and
lubricating ........................................... 7-21
Brake pedal free play, adjusting............ 7-16
Brake shoes, checking .......................... 7-17CCables, checking and lubricating .......... 7-20
Carburetor, adjusting ............................ 7-11
Care ........................................................ 8-1
Clutch free play, adjusting..................... 7-15DDrive chain, cleaning and lubricating .... 7-20
Drive chain slack ................................... 7-18EEngine break-in ....................................... 6-3
Engine idling speed............................... 7-11
Engine oil ................................................ 7-7
Engine, starting a warm .......................... 6-2
Engine stop switch .................................. 4-2FFront fork, checking .............................. 7-22
Fuel ......................................................... 4-4
Fuel cock................................................. 4-6
Fuel tank breather hose .......................... 4-6
Fuel tank cap .......................................... 4-4
Fuse, replacing ..................................... 7-25
HHandlebar switches ................................ 4-1IIdentification numbers .......................... 10-1KKey identification number ..................... 10-1LLabels, location....................................... 1-1MMain switch ............................................. 4-1
Maintenance and lubrication, periodic .... 7-3
Maintenance, emission control system... 7-2
Matte color, caution ................................ 8-1
Model label ........................................... 10-2PParking ................................................... 6-4
Part locations .......................................... 3-1SSafety information................................... 2-1
Seat ........................................................ 4-7
Shifting.................................................... 6-2
Shift pedal............................................... 4-3
Shift pedal, checking ............................ 7-17
Sidestand................................................ 4-8
Sidestand, checking and lubricating ..... 7-22
Spark arrester, cleaning ....................... 7-10
Spark plug, checking .............................. 7-6
Specifications ......................................... 9-1
Speed limiter........................................... 4-2
Starter (choke) lever ............................... 4-7
Starting and warming up a cold
engine .................................................. 6-1
Starting circuit cut-off system ................. 4-8
Start switch ............................................. 4-2Steering, checking................................. 7-23
Storage.................................................... 8-3
Supporting the motorcycle .................... 7-26
Swingarm pivots, lubricating ................. 7-22
TThrottle cable free play, adjusting ......... 7-12
Throttle grip and cable, checking and
lubricating ........................................... 7-21
Tires ...................................................... 7-13
Troubleshooting .................................... 7-30
Troubleshooting chart ........................... 7-31VValve clearance..................................... 7-13
Vehicle Emission Control Information
label (For Canada) .............................. 10-2
Vehicle identification number ................ 10-1WWheel bearings, checking ..................... 7-23
Wheel (front) ......................................... 7-27
Wheel (rear) .......................................... 7-28
Wheels .................................................. 7-14
U1P684E0.book Page 1 Tuesday, April 28, 2009 10:22 AM