KTM 640 LC4 Supermoto

KTM Supermoto 640
Manufacturer	KTM
Also called	640 SuperMoto, 620 SuperMoto, LC4-E 640 Supermoto, 640 LC4 SUPERMOTO PRESTIGE, 640 LC4 SM Supermoto, 640 LC4 Supermoto Orange, 640 LC4 Supermoto Black, 640 LC4 Supermoto, LC4640 Supermoto, LC4 640 Supermoto
Production	1999 - 00
Engine	Four stroke, single Cylinder. SOHC, 4 Valve per cylinder,
Compression ratio	11.0:1
Ignition	Contactless DC-CDI ignition with digital advanced system, KOKUSAN
Spark Plug	NGK DPR8 EA-9
Battery	12V 8Ah, maintenance free
Transmission	5 Speed, claw shifted
Frame	Central chrome-moly-steel frame
Suspension	Front: 43 mm WP upside-down forks Rear: Central shock absorber (WP) with PRO-LEVER linkage to rear-swingarm with needle bearing
Brakes	Front: Single 320 mm disc, 4piston floating caliper Rear: Single 220 mm disc, 1 piston floating caliper
Front Tire	120/70 - 17
Rear Tire	160/60 - 17
Wheelbase	1510 mm / 59.4 in
Seat Height	915 mm / 36.0 in
Weight	137 kg / 302 lbs (dry),
Fuel Capacity	11 L / 2.9 US gal / 2.4 Imp gal
Manuals	Service Manual

Engine

The engine was a Liquid cooled cooled Four stroke, single Cylinder. SOHC, 4 Valve per cylinder,. The engine featured a 11.0:1 compression ratio.

Drive

Power was moderated via the Wet, multiplate.

Chassis

It came with a 120/70 - 17 front tire and a 160/60 - 17 rear tire. Stopping was achieved via Single 320 mm disc, 4piston floating caliper in the front and a Single 220 mm disc, 1 piston floating caliper in the rear. The front suspension was a 43 mm WP upside-down forks while the rear was equipped with a Central shock absorber (WP) with PRO-LEVER linkage to rear-swingarm with needle bearing. The 640 LC4 Supermoto was fitted with a 11 L / 2.9 US gal / 2.4 Imp gal fuel tank. The bike weighed just 137 kg / 302 lbs. The wheelbase was 1510 mm / 59.4 in long.

Photos

Overview

KTM 640 LC4 Supermoto

Make Model	KTM 640 LC4 Supermoto
Year	1999 - 00
Engine Type	Four stroke, single Cylinder. SOHC, 4 Valve per cylinder,
Displacement	624.6 cc / 38.1 cu in
Bore X Stroke	101 x 78 mm
Compression	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	17:42
Final Drive	Chain 5/8 x 1/4" O-ring
Frame	Central chrome-moly-steel frame
Front Suspension	43 mm WP upside-down forks
Front Wheel Travel	270 mm / 10.6 in
Rear Suspension	Central shock absorber (WP) with PRO-LEVER linkage to rear-swingarm with needle bearing
Rear Wheel Travel	300 mm / 11.8 in
Front Brakes	Single 320 mm disc, 4piston floating caliper
Rear Brakes	Single 220 mm disc, 1 piston floating caliper
Front Tire	120/70 - 17
Rear Tire	160/60 - 17
Steering Head Angle	62.5o
Wheelbase	1510 mm / 59.4 in
Ground Clearance	335 mm / 13.2 in
Seat Height	915 mm / 36.0 in
Dry Weight	137 kg / 302 lbs
Gvwr	350 kg / 773 lbs
Fuel Capacity	11 L / 2.9 US gal / 2.4 Imp gal
Fuel Reserve	2.5 L / 2.6 US qt / 2.2 Imp qt
Manual	blackbears.ru

External Links

• http://www.blackbears.ru/manual/files/KTM_400-660_LC4_'98-03_Repair_Manual.zip