Page 51 of 90
Periodic maintenance an d a djustment
7-8
7
4. If the engine oil is at or below the
minimum level mark, add suffi-
cient oil of the recommended type
to raise it to the correct level.
5. Insert the dipstick into the oil filler hole, and then tighten the oil filler
cap.
To chan ge the en gine oil
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.
4. Install a new gasket and the drain bolt, and then tighten the drain
bolt to the specified torque.
5. Refill with the specified amount of the recommended engine oil, and
then install and tighten the oil filler
cap.
NOTICE
ECA11621
In or der to prevent clutch slip-
pa ge (since the en gine oil also
lu bricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a hi gh-
er quality than specified . In
a dd ition, do not use oils la bele d
“ENERGY CONSERVING II” or
hi gher.
Make sure that no forei gn mate-
rial enters the crankcase.
6. Start the engine, and then let it idle for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off
and check for the cause.
7. Turn the engine off, and then check the oil level and correct it if
necessary.
1. Engine oil drain bolt
2. Gasket
Tightening torque:
Engine oil drain bolt: 20 Nm (2.0 m·kgf, 14 ft·lbf)
12
Recommen ded en gine oil:
See page 9-1.
Oil chan ge quantity:
0.80 L (0.85 US qt, 0.70 Imp.qt)
U2CJ83E0.book Page 8 Friday, June 26, 2015 10:36 AM
Page 52 of 90
Periodic maintenance an d a djustment
7-9
7
EAU39835
Cleanin g the air filter element
The air filter element should be cleaned
as follows at the intervals specified in
the periodic maintenance and lubrica-
tion chart. Clean or, if necessary, re-
place the air filter element more
frequently if you are riding in unusually
wet or dusty areas.
To clean the air filter element
1. Remove the air filter case cover by removing the screws.
2. Pull the sponge material and the air filter mesh out. 3. Clean the mesh with solvent, and
then wipe the solvent off.
4. Clean the sponge material with solvent, and then squeeze the re-
maining solvent out. WARNING!
Use only a ded icated parts
cleanin g solvent. To avoi d the
risk of fire or explosion, do not
use gasoline or solvents with a
low flash point.
[EWA10432] NOTICE:
To avoi d damag ing the foam
material, han dle it g ently an d
carefully, an d d o not twist or
wrin g it.
[ECA10512]
5. Apply oil of the recommended
type to the entire surface of the
sponge material, and then
squeeze the excess oil out.
TIP
The sponge material should be wet but
not dripping.
1. Screw
2. Air filter case cover
1. Sponge material
1. Air filter mesh
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Page 83 of 90
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 °
U2CJ83E0.book Page 1 Friday, June 26, 2015 10:36 AM
Page 84 of 90
Specifications
9-2
9
Trail:34 mm (1.3 in)
Front tire:
Type:
With tube
Size: 2.50-10 4PR
Manufacturer/model: CHENG SHIN/C183A
Speed rating:
100 km/h (62 mph)
Rear tire:
Type:With tube
Size: 2.50-10 4PR
Manufacturer/model:
CHENG SHIN/C183A
Speed rating: 100 km/h (62 mph)
Loa din g:
Maximum rider weight:
40.0 kg (88 lb)
Tire air pressure (measure d on col d
tires):
Front:
100 kPa (1.00 kgf/cm², 15 psi)
Rear: 100 kPa (1.00 kgf/cm², 15 psi)
Front wheel:
Wheel type:
Spoke wheel
Rim size: 10x1.40
Rear wheel:
Wheel type:
Spoke wheel
Rim size: 10x1.40
Front brake:
Type:
Mechanical leading trailing drum brake
Rear brake:
Type:
Mechanical leading trailing drum brake
Front suspension:
Type:Telescopic fork
Spring: Coil spring Wheel travel:
96 mm (3.8 in)
Rear suspension:
Type:
Swingarm
Spring: Coil spring
Shock absorber: Hydraulic damper
Wheel travel:
71 mm (2.8 in)
Electrical system:
System voltage:12 V
Ignition system: CDI
Charging system:
AC magneto
Battery:
Model:GT4B-5
Voltage, capacity:
12 V, 2.5 Ah (10 HR)
Fuse(s):
Fuse:10.0 A
U2CJ83E0.book Page 2 Friday, June 26, 2015 10:36 AM