KTM LC4 ADVENTURE R 640 2000, Owner'S Handbook Manual

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TECHNICAL DATA – ENGINE LC4 ADVENTURE R 640 2000
Engine LC4 640 E
Design Liquid-cooled single cylinder 4-stroke engine with balancer shaft and electric starter
Displacement 625 ccm
Bore / Stroke 101 / 78 mm
Ratio 11,0 : 1
Fuel unleaded premium gasoline with a least RON 95
Valve timing 4 valves over rocker arm and 1 overhead camshaft, camshaft drive through single chain
Camshaft 249° (249)
Valve timing by 1 mm IO 13° BTDC EO 53° BBDC
valve clearence IC 51° ABDC EC 11° ATDC
Valve diameter Intake: 36 mm Exhaust: 30 mm
Valve clearence cold Intakte 0,15 mm Exhaust: 0,15 mm
Crank shaft bearing 2 cylinder roller bearing
Connecting rod bearing needle bearing
Top end bearing bronze bushing
Piston cast aluminium alloy
Piston rings 1 compression ring, 1 taper face ring, 1 oil scraper ring
Engine lubrication two Eaton-oilpumps
Engine oil see bellow #
Engine oil quantity appr. 2,1 liters including frame
Primary ratio straight geared spur wheels 30 : 81 teeth
Clutch multi disc clutch in oil bath
Transmission 5-speed claw shifted
Gear ratio 1st 14:35
2nd 15:24
3rd 18:21
4th 20:19
5th 22:18
Ignition system contactless DC-CDI ignition with digital advanced system type KOKUSAN
Ignition timing adjustment to max. 38° BTDC at 6000 rpm
Generator 12V 200W
Spark plug NGK DR8EA
Spark plug gap 0,7 mm
Cooling system liquid cooled, permanent rotation of cooling liquid through mechanic driven water pump
Cooling liquid 1 liter, 40% antifreeze, 60% water, at least –25 ° C (–13 ° F)
Starting equipment electric starter and kickstarter
BASIC CARBURETOR SETTING
Carburetor
Carburetor setting number
Main jet
Needle jet
Idling jet
Jet needle
Needle position from top
Mixture.adju. screw open
Throttle valve
Starting jet
Performance restrictor BST40-225
080298
142,5
689 X-6
45
6G5
3 rd
–
–
–
slide stop 17 mm
BST40-225
090298
142,5
689 X-6
45
6G5
3 rd
–
–
–
–
640 Adventure
25 kW
640 Adventure
37 kW