Technical Specifications - Engine - KTM 400LC4 Owner's Handbook Manual

Engine
Design
Displacement
Bore / Stroke
Ratio
Fuel
Valve timing
Camshaft
Valve timing by 1 mm
valve clearence
Valve diameter
Valve clearence cold
Crank shaft bearing
Connecting rod bearing
Top end bearing
Piston
Piston rings
Engine lubrication
Engine oil
34
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: SF, SG, SH
TEMPERATURE
–
10W 40
10W 50
10W 60
TECHNICAL DATA – ENGINE 400 / 640 LC4 '99
400 LC4
Liquid-cooled single cylinder 4-stroke engine with balancer shaft and electric starter
398 ccm
89 / 64 mm
10,8 : 1
4 valves over rocker arm and 1 overhead camshaft, camshaft drive through single chain
IO 22° BTDC EO 60° BBDC
IC 47° ABDC EC 4° ATDC
Intake: 0,20 mm Exhaust: 0,20 mm
contactless DC-CDI ignition with digital advanced system type KOKUSAN
liquid cooled, permanent rotation of cooling liquid through mechanic driven water pump
1 liter, 40% antifreeze, 60% water, at least –25 ° C (–13 ° F)
0°C +
32°F
15W 40
15W 50
15W 60
unleaded premium gasoline with a least RON 95
249/1
Intake: 36 mm Exhaust: 30 mm
2 cylinder roller bearing
needle bearing
bronze bushing
forged/cast aluminium alloy
1 compression ring, 1 taper face ring, 1 oil scraper ring
two Eaton-oilpumps
see bellow #
appr. 2,1 liters including frame
straight geared spur wheels 30 : 81 teeth
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
adjustment to max. 38° BTDC at 6000 rpm
12V 200W
NGK DR8EA
0,7 mm
electric starter and kickstarter
Engine oil
Use only oil brands (Shell Advance Ultra 4), which meet qua-
lity requirements of API-classes SF, SG or SH (informations
on bottles) or higher. Both, mineral and synthetic oils with
above specifications can be used.
! CAUTION
P
OOR OIL QUALITY OR MINOR QUANTITY EFFECT EARLY ENGINE
640 LC4
625 ccm
101 / 78 mm
11 : 1
IO 13° BTDC EO 53° BBDC
IC 51° ABDC EC 11° ATDC
0,15 mm Exhaust: 0,15 mm
!
- .
WEAR