Dimensions:Overall length:
1740 mm (68.5 in)
Overall width:
675 mm (26.6 in)
Overall height:
1065 mm (41.9 in)
Seat height:
770 mm (30.3 in)
Wheelbase:
1210 mm (47.6 in)
Ground clearance:
132 mm (5.20 in)
Weight:With oil and fuel:
CS50/CS50M: 81.0 kg (178.6 lb)
CS50Z: 84.0 kg (185.2 lb)
Engine:CS50/CS50M: Air cooled 2-stroke
CS50Z: Liquid cooled 2-stroke
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
49.2 cm
3
Bore x stroke:
40.0 x 39.2 mm (1.57 x 1.54 in)
Compression ratio:
CS50: 11.60:1
CS50M: 10.10 :1
CS50Z: 11.40 :1
Starting system:
Electric starter and kickstarter
Lubrication system:
Separate lubrication (Yamaha autolube)Type:
YAMALUBE 2 or 2-stroke engine oil
Engine oil quantity:Quantity:
1.40 L (1.48 US qt, 1.23 Imp.qt)
Final transmission oil:Type:
SAE10W30 type SE motor oil
Quantity:
0.11 L (0.12 US qt) (0.10 Imp.qt)
Cooling system (CS50Z):Coolant reservoir capacity (up to the maxi-
mumlevel mark):
0.25 L (0.26 US qt) (0.22 Imp.qt)
Radiator capacity (including all routes):
0.91 L (0.96 US qt) (0.80 Imp.qt)
Air filter:Air filter element:
Wet element
Fuel:Recommended fuel:
Regular unleaded gasoline
Fuel tank capacity:
5.5 L (1.45 US gal, 1.21 Imp.gal)
Fuel reserve amount:
1.9 L (0.50 US gal, 0.42 Imp.gal)
Carburetor:Manufacturer:
GURTNER
Type x quantity:
PY12
Spark plug(s):Manufacturer/model:
CS50-CS50Z: NGK/BR8HS
CS50M: NGK/BPR4HS
Spark plug gap:
0.6-0.7 mm (0.024-0.028 in)
Clutch:Clutch type:
Dry, centrifugal automatic
Transmission:Primary reduction system:
Helical gear
Primary reduction ratio:
52/13 (4.000)
Secondary reduction system:
Spur gear
Secondary reduction ratio:
CS50: 42 x 13 (3.230)
CS50M: 45 x 12(3.750)
CS50Z: 43 x 13 (3.308)
Transmission type:
V-belt automatic
Operation:
Centrifugal automatic type
Chassis:Frame type:
Steel tube underbone
Caster angle:
25.00 º
Trail:
80.0 mm (3.15 in)
Front tire:Type:
Tubeless
SPECIFICATIONS
8-1
8
Size:
110/70-12 47L
Manufacturer/model:
CHENG SHIN TIRE / C922
Rear tire:
Type:
Tubeless
Size:
120/70-12 51L 130/70-12 56L
Manufacturer/model:
CHENG SHIN TIRE / C922
Loading:Maximum load:
CS50/CS50M: 169 kg (372 lb)
CS50Z: 166 kg (366 lb)
Tire air pressure (measured on cold
tires):
Loading condition:
0–90 kg (0–198 lb)
Front:
175 kPa (1.75 kgf/cm
2, 25 psi,
1.75 bar)
Rear:
200 kPa (2.00 kgf/cm
2, 29 psi,
2.00 bar)
90 kg (198 lb) - maximum load
Front:
175 kPa (1.75 kgf/cm
2, 25 psi,
1.75 bar)
Rear:
225 kPa (2.25 kgf/cm
2, 33 psi,
2.25 bar)
Front wheel:Wheel type:
Cast wheel
Rim size:
MT 2.75X12
Rear wheel:Wheel type:
Cast wheel
Rim size:
MT 3.00X12
Front brake:Type:
Single disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4
Rear brake:Type:
Drum brake
Operation:
Left hand operation
Front suspension:Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
70.0 mm (2.76 in)
Rear suspension:Type:
Unit swingSpring/shock absorber type:
Coil spring/oil damper
Coil spring/gas-oil damper (depens on
models)
Wheel travel:
60.0 mm (2.36 in)
Electrical system:Ignition system:
CDI
Charging system:
Flywheel magneto
Battery:Model:
GT4L-BS
Voltage, capacity:
12 V, 4.0 Ah
Headlight:Bulb type:
Incandescence
Bulb voltage, wattage x quantity:Headlight:
12 V, 35 W/35.0 W x 1
Tail/brake light:
12 V, 21.0 W/5.0 W x 1
Front turn signal light:
12 V, 10.0 W x 2
Rear turn signal light:
12 V, 10.0 W x 2
Auxiliary light:
12 V, 5.0 W x 2
Meter lighting:
12 V, 1.2 W x 2
High beam indicator light:
12 V, 1.2 W x 1
SPECIFICATIONS
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