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					Technical specifications
					
				 | 
			
				| Model: | GS 650GL | 
			
				| Years: | 1981-82 | 
			
			
					
						| Engine: | Four stroke, transverse four cylinders, DOHC, 2 valves per cylinder. | 
			
					
						| Capacity: | 673 cc / 41 cu in | 
			
					
						| Bore x Stroke: | 62 x 55.8 mm | 
			
					
						| Compression Ratio: | 9.4:1 | 
			
					
						| Cooling System: | Air cooled | 
			
					
						| Induction: | 4 x 32mm Mikuni carburetors | 
			
					
						| Ignition: | Transistorized | 
			
					
						| Starting: | Electric | 
			
					
						| Max Power: | 53.2 kW / 73 hp @ 9400 rpm | 
			
					
						| Max Torque: | 57 Nm / 5.8 kgf-m / 42 lb-ft @ 8000 rpm | 
			
					
						| Transmission: | 5 Speed | 
			
					
						| Final Drive: | Chain | 
			
					
						| Front Suspension: | Air asssited telescopic fork | 
			
					
						| Rear Suspension: | Dual shocks, 5-way preload and 4-way damping | 
			
					
						| Front Brakes: | 2 x 275 mm discs, 2 piston calipers | 
			
					
						| Rear Brakes: | Single 275mm disc, 1 piston caliper | 
			
					
						| Front Tyre: | 90/90-19 | 
			
					
						| Rear Tyre: | 130/90-16 | 
			
					
						| Dry-weight: | 212 kg / 467 lbs | 
			
					
						| Fuel Capacity: | 12 Litres / 3.2 US gal / 2.6 Imp mpg |