KTM 640 LC4 Adventure R (2003-04)

The KTM 640 LC4 Adventure R is a motorcycle produced in the years 2003-2004. It has a four-stroke, single cylinder engine with a capacity of 624.6 cc. The compression ratio is 11.0:1 and it is liquid-cooled. The ignition is a contactless DC-CDI ignition with a digital advanced system and it has both kick and electric starting. It has a maximum power of 49 hp and a maximum torque of 52 Nm. The clutch is wet and multiplate and it has a 5-speed transmission with a final drive ratio of 16:40. It has a central chrome-moly-steel frame and front suspension consisting of 50 mm WP upside-down forks. The rear suspension is a WP monoshock. The bike has a dry weight of 154 kg and a fuel capacity of 28 L, with a fuel reserve of 3.8 L. The steering head angle is 62.5o, the wheelbase is 1510 mm, the ground clearance is 320 mm, and the seat height is 945 mm. Front brakes are a single 300mm disc, 4piston floating caliper, while rear brakes are a single 220mm disc, 1 piston floating caliper. The front tyre size is 90/90 – 21 54S Enduro 3, while the rear tyre size is 140/80 – 18 70R Enduro 3. The manual for this model is available at blackbears.ru.

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Technical specifications:

Make Model: KTM 640 LC4 Adventure

Year: 2003 – 04

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