Technical Data - Engine - KTM 640 LC4 ADVENTURE Owner's Manual

TECHNICAL DATA – ENGINE 640 LC4 ADVENTURE 2004
Type
Design
Displacement
Bore / Stroke
Ratio
Fuel
Valve timing
Camshaft
Valve diameter
Valve clearence cold
Crank shaft bearing
Connecting rod bearing
Top end bearing
Piston
Piston rings
Engine lubrication
Quantity of engine oil
Engine oil
Primary ratio
48
Clutch
Transmission
Ignition system
Ignition timing
Generator
Spark plug
Spark plug gap
Cooling system
Cooling liquid
Starting equipment
BASIC CARBURETOR SETTING
Type
Main jet
Needle jet
Idling jet
Jet needle
Needle clip pos. f. top
Mixt. adj. screw open
#
JASO T903 MA
TEMPERATURE
5W/40
Liquid-cooled single cylinder 4-stroke engine with balancer shaft and electric starter
4 valves over rocker arm and 1 overhead camshaft, camshaft drive through single chain
contactless DC- CDI ignition with digital advanced system type KOKUSAN
liquid cooled, permanent rotation of cooling liquid through mechanic driven water pump
GEAR RATIOS
Primary
640 LC4 Adventure
ratio
BST40-266
152,5
X-6 689
31:79
45
6G5
3. from top
2,25
0°C
32°F
10W/50
640 LC4
625 ccm
101 / 78 mm
11,5 : 1
unleaded premium gasoline with a least RON 95
584-V03/1
Intake: 36 mm
Intake: 0.15 mm
2 cylinder roller bearing
needle bearing
bronze bushing
forged/cast aluminium alloy
1 compression ring, 1 taper face ring, 1 oil scraper ring
2 Eaton-Oilpumps
see table #
2.1 liters including frame
straight geared spur wheels 31 : 79 teeth
multi disc clutch in oil bath, hydraulically operated
5-speed claw shifted
adjustment to max. 38° BTDC at 6000 rpm
12V 200W
NGK DCPR 8 E
0.9 mm
at least –25° C (–13° F)
electric starter, kick starter
Transmission
1st gear 14:35
2nd gear 15:24
3rd gear 18:21
4th gear 20:19
5th gear 22:18
Engine oil
Only use fully synthetic engine oils that meet the
JASO MA quality requirements (see information on
the can).
KTM recommends Motorex Power Synt 4T in the
10W/50 viscosity (for temperatures over 0°C, 32°F)
or 5W/40 (for temperatures under 0°C, 32°F).
Exhaust: 30 mm
Exhaust: 0.15 mm
Original final Available chain
drive ratio drive sprockets
15 t
15:45
16 t for chain
16:42
17 t 5 / x 1 / "
17:38
8 4
17:42
Available final
drive sprockets
38 t
40 t for chain
42 t 5 / x 1 / "
8 4
45 t
48 t