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					Technical specifications
					
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				| Model: | 640 LC4 Adventure R | 
			
				| Years: | 2000-01 | 
			
			
					
						| Engine: | Four stroke, single Cylinder. SOHC, 4 Valve per cylinder, | 
			
					
						| Capacity: | 624.6 cc / 38.1 cu in | 
			
					
						| Bore x Stroke: | 101 x 78 mm | 
			
					
						| Compression Ratio: | 11.0:1 | 
			
					
						| Cooling System: | Liquid cooled | 
			
					
						| Induction: | Mikuni BST 40 | 
			
					
						| Ignition: | Contactless DC-CDI ignition with digital advanced system, KOKUSAN | 
			
					
						| Spark Plug: | NGK DPR8 EA-9 | 
			
					
						| Battery: | 12V 8Ah, maintenance free | 
			
					
						| Starting: | Kick & electric | 
			
					
						| Max Power: | 35.7 kW / 49 hp @ 7500 rpm | 
			
					
						| Max Torque: | 52 Nm / 5.3 kgf-m / 38.4 lb-ft @ 5500 rpm | 
			
					
						| Clutch: | Wet, multiplate | 
			
					
						| Transmission: | 5 Speed, claw shifted | 
			
					
						| Primary Drive Ratio: | 30:81 | 
			
					
						| Gear Ratios: | 1st 14:35 / 2nd 15:24 / 3rd 18:21 / 4th 20:19 / 5th 22:18 | 
			
					
						| Final Drive Ratio: | 16:40 | 
			
					
						| Final Drive: | Chain | 
			
					
						| Frame: | Central chrome-moly-steel frame | 
			
					
						| Front Suspension: | 50 mm WP upside-down forks | 
			
					
						| Front Wheel Travel: | 300 mm / 11.8 in | 
			
					
						| Rear Suspension: | WP monoshock | 
			
					
						| Rear Wheel Travel: | 320 mm / 12.6 in | 
			
					
						| Front Brakes: | Single 300mm disc, 4piston floating caliper | 
			
					
						| Rear Brakes: | Single 220mm disc, 1 piston floating caliper | 
			
					
						| Front Tyre: | 90/90 - 21 54S Enduro 3 | 
			
					
						| Rear Tyre: | 140/80 - 18 70R Enduro 3 | 
			
					
						| Steering Head Angle: | 62.5o | 
			
					
						| Wheelbase: | 1510 mm / 59.4 in | 
			
					
						| Ground Clearance: | 320 mm / 12.6 in | 
			
					
						| Seat Height: | 945 mm / 37.2 in | 
			
					
						| Dry Weight: | 154 kg / 340 lbs | 
			
					
						| GVWR: | 380 kg / 839 lbs | 
			
					
						| Fuel Capacity: | 28 L / 7.4 US gal / 6.2 Imp gal | 
			
					
						| Fuel Reserve: | 3.8 L / 1.0 US gal / 0.8 Imp gal | 
			
					
						| Manual: | blackbears.ru |