KTM Supermoto 640LC4 Owner's Manual page 40

Engine
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
Engine oil
Engine oil quantity
Primary ratio
Clutch
Transmission
Gear ratio
Ignition system
Ignition timing
Generator
Spark plug
Spark plug gap
Cooling system
Cooling liquid
Starting equipment
#
API: SG, SH
TEMPERATUR
–
0°C
32°F
10W 40
10W 50
Liquid-cooled single cylinder 4-stroke engine with balancer shaft and electric starter
unleaded premium gasoline with a least RON 95
4 valves over rocker arm and 1 overhead camshaft, camshaft drive through single chain
Intake: 36 mm
1 compression ring, 1 taper face ring, 1 oil scraper ring
straight geared spur wheels 30 : 81 teeth
contactless DC-CDI ignition with digital advanced system type KOKUSAN
adjustment to max. 38° BTDC at 6000 rpm
liquid cooled, permanent rotation of cooling liquid through mechanic driven water pump
1 liter, 40% antifreeze, 60% water, at least –25 ° C (–13 ° F)
Engine oil
Only use fully synthetic branded oils (Shell Advance Ultra 4) meeting or
surpassing the quality requirements of API classes SG or SH (see specifica-
tions on the container).
+
P
OOR OIL QUALITY OR MINOR QUANTITY EFFECT EARLY ENGINE
15W 40
15W 50
640 LC4
624,6 ccm
101 / 78 mm
11 : 1
249/1
Exhaust: 30 mm
0,15 mm Exhaust: 0,15 mm
2 cylinder roller bearing
needle bearing
bronze bushing
forged/cast aluminium alloy
two Eaton-oilpumps
see bellow #
appr. 2,1 liters including frame
multi disc clutch in oil bath
5-speed claw shifted
1st 14:35
2nd 15:24
3rd 18:21
4th 20:19
5th 22:18
12V 200W
NGK DPR8 EA9
0,9 mm
electric starter and kickstarter
CAUTION
!
39
!
- .
WEAR