1986 Yamaha SR 250 specifications.

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Engine and transmission 1986 Yamaha SR 250
Engine type:
1 cylinders, 4-stroke, Single
Displacement:
239 cc (14.6 cubic inches)
Bore × stroke:
73.5 mm × 56.5 mm (oversquare - shortstroke)
Cooling system:
Air cooled
Power:
19.99 HP (14.7 kW) @ 7700 rpm
Throttle:
Cable operated
Valves:
Valves per cylinder:
2
Fuel and ignition:
Sparks per cylinder:
1
Fuel supply system:
Carburetor
Ignition type:
TCI (Transistor Controlled Ignition)
Compression:
9.2:1
Engine mounting:
Transverse
Lubrication system:
Wet sump
Gear box:
Manual 5-speed
Clutch:
Wet, cable operated
Final drive:
Chain
Spark plug pipe type:
NGK, BP7ES
Motor oil:
20W/40
Starter:
Electric
Dimensions 1986 Yamaha SR 250
Weight:
Curb weight:
135 kg
Chassis and suspension 1986 Yamaha SR 250
Frame type:
steel, Single cradle frame
Front:
Suspension:
Cartridge
Brake:
Drum
Tire pressure:
1.8 bar, with pillion: 2 bar withpilion
Rear:
Suspension:
twin shock, Swingarm
Brake:
Drum
Tire:
120 / 90 R16
Tire pressure:
2 bar, with pillion: 2.3 bar withpilion
Other 1986 Yamaha SR 250
ABS available:
No
Power-to-weight ratio:
0.11 HP/kg(9.18 kg/HP)
Top speed:
120 km/h
Fuel capacity:
10 l
Number of riders:
2 persons