Technical Data - Engine; Capacity - Engine Oil - KTM 400 EXC EU Owner's Manual

TECHNICAL DATA - ENGINE

Design
Displacement (All 400 models)
Displacement (All 450 models)
Displacement (All 530 models)
Stroke (All 400 models)
Stroke (All 450 models)
Stroke (All 530 models)
Bore
Compression ratio (All 400 models)
Compression ratio (All 450/530 models)
Idle speed
Control
Valve diameter, intake
Valve diameter, exhaust
Valve clearance
Exhaust at: 20 °C (68 °F)
Intake at: 20 °C (68 °F)
Crankshaft bearing
Conrod bearing
Piston pin bearing
Pistons
Piston rings
Engine lubrication
Primary transmission
Clutch
Transmission ratio
1st gear
2nd gear
3rd gear
4th gear
5th gear
6th gear
Alternator
Ignition
Spark plug
Spark plug electrode gap
Cooling
Starter

Capacity - engine oil

20.1
Engine oil 0.60 l (0.63 qt.)
1-cylinder 4-stroke engine, water-cooled
393.4 cm³ (24.007 cu in)
449.3 cm³ (27.418 cu in)
510.4 cm³ (31.147 cu in)
55.5 mm (2.185 in)
63.4 mm (2.496 in)
72 mm (2.83 in)
95 mm (3.74 in)
11.1:1
11.9:1
1,550... 1,650 rpm
OHC, 4 valves controlled via rocker arm, drive via tooth/wheel
chain
39.5 mm (1.555 in)
31.7 mm (1.248 in)
0.12... 0.17 mm (0.0047... 0.0067 in)
0.10... 0.15 mm (0.0039... 0.0059 in)
2 grooved ball bearings
Needle bearing
No bearing bushes - DLC-plated piston pins
Forged light alloy
1 compression ring, 1 oil scraper ring
Pressure circulation lubrication with 2 rotor pumps (engine) / 1
rotor pump (transmission)
33:76
Multidisc clutch in oil bath / hydraulically activated
14:36
17:32
19:28
22:26
24:23
26:21
12 V, 150 W
Contactless controlled fully electronic ignition with digital igni-
tion adjustment, type Kokusan
NGK LKAR 8AI - 9
0.9 mm (0.035 in)
Water, permanent circulation of coolant by water pump
Electric starter/kick starter
Engine oil (SAE 10W/50) ( p. 113)
102