Specifications of Suzuki GS 150

Specifications

Engine Type	4-Stroke, Air-Cooled, OHC
Bore	57.0 mm (2.244 in)
Stroke	56.8 mm (2.236 in)
Compression Ration	9.2:1
Starter System	Electric/Kick
Transmission	5-speed constant mesh
Wheelbase	1270 mm (50.0 in)
Ground Clearance	155   mm (6.5 in)
Dry Mass	119 Kg(262 lbs)
Tire Front	2.75-18 42P
Tire Rear	3.00-18 47P
Fuel Tank	12.0 L (3.2/2.6 US/Imp gal)
Drive Chain	RK428FDZ 116 links
Front Suspension	Telescopic,  Coil spring, Oil damped
Rear Suspension	Swing arm, Coil spring, Oil damped
Battery	12V (8Ah)/10HR
Head Light	12V 35/35W
Brake Light	12V 21/5W
Ignition Type	Electronic Ignition (CDI)
Front Brake	Drum Brake
Rear Brake	Drum Brake

Definitions

Four-Stroke

A four-stroke engine (also known as four-cycle) is an internal combustion engine in which the piston completes four separate strokes—intake, compression, power, and exhaust—during two separate revolutions of the engine'scrankshaft, and one single thermodynamic cycle. For more:

 Air-Cooled

Most modern internal combustion engines are cooled by a closed circuit carrying liquid coolant through channels in the engine block and cylinder head, where the coolant absorbs heat, to a heat exchanger or radiator where the coolant releases heat into the air. Thus, while they are ultimately cooled by air, because of the liquid-coolant circuit they are known as water-cooled. In contrast, heat generated by an air-cooled engine is released directly into the air. Typically this is facilitated with metal fins covering the outside of the cylinders which increase the surface area that air can act on.In all combustion engines, a great percentage of the heat generated (around 44%) escapes through the exhaust, not through either a liquid cooling system nor through the metal fins of an air-cooled engine (12%). About 8% of the heat energy finds its way into the oil, which although primarily meant for lubrication, also plays a role in heat dissipation via a cooler. For more:

Air-cooled engines have fins extending out from the engine to pull heat away. Cool air is then forced over the fins -- typically by a fan in cars. For aircraft and motorcycles, the vehicle's speed alone moves enough cool air over the fins to keep the engine cool.Some air-cooled engines may also have ducts around the engine to keep air flowing to the hottest areas. Some aircraft engines may even have baffling systems that channel high-pressure air into the cooling fins. For more

OHC (Overhead Camshaft)
For more 

Bore
Bore is the diameter measurement of the cylinders in a piston engine.  Bore is the diameter of the cylinder, which means that engine displacement is dependent on both the bore and the stroke of the cylinder.

Stroke

In a steam locomotive, steam, Otto or Diesel piston engine, a stroke is the action of a piston travelling the full length of its locomotive cylinder or engine cylinder in one direction.

The stroke length is determined by the cranks on the crankshaft. Stroke can also refer to the distance the piston travels. Bore is the diameter of the cylinder, which means that engine displacement is dependent on both the bore and the stroke of the cylinder. Fore more