Yamaha 2002 CS50, Service Manual, Page: 16 / 204

SPEC
GENERAL SPECIFICATIONS
2-1
SPECIFICATIONS
GENERAL SPECIFICATIONS
Model CS50 CS50Z
Dimensions:
Overall lenght 1.740 mm
Overall widht 675 mm
Overall height 1.065 mm
Seat height 770 mm / 776 mm
Wheelbase 1.210 mm
Minimum ground clearance 132 mm
Basic weight (With oil and full fuel tank): 80,5 kg 83,7 kg
Engine:
Engine type Plate valve, gasoline, 2-strokes
air-cooled
Liquid cooled
Cylinder arrangement Forward-inclined single cylinder
Displacement 49,3 cc
Bore x stroke 40,0 x 39,2 mm
Compression ratio 10,2 : 1 11,4 : 1
Starting system Electric and kickstarter
Lubrication system: Yamaha autolube
Oil type or grade:
Engine oil 2-strokes motor oil (JASO grade FC)
Transmission oil SE type 10W30 SAE motor oil
Oil capacity:
Oil tank (motor oil) 1,4 L
Transmission fluid
Periodic fluid change 0,10 L
Total amount 0,11 L
Cooling system capacity:
(Total amount) – 0,910 L
Air filter: Wet type element
Fuel:
Type Unleaded gasoline
Fuel tank capacity 5,5 L
Carburetor:
Type/quantity PHVA12ZS/1, PY12/1 PHVA12ZS/1
Manufacturer DELL’ORTO, GURTNER DELL’ORTO
Spark plug:
Type/Manufacturer BR8HS/N.G.K.
Spark plug gap 0,6 ~ 0,7 mm
Clutch type: Dry, centrifugal automatic
Transmission:
Primary reduction system Helical gear
Primary reduction ratio 52/13 (4.000)
Secondary reduction system Straight gearing
Secondary reduction ratio 42/13 (3.230) 43/13 (3.310)
Transmission type Single speed automatic
(V-belt type)
Operation Centrifugal automatic type