Technical Data - Engine - KTM 450 XC Owner's Manual

TECHNICAL DATA - ENGINE

TECHNICAL DATA - ENGINE 13
Design
Displacement (450 XC ATV)
Displacement (525 XC ATV)
Stroke
Bore (450 XC ATV)
Bore (525 XC ATV)
Compression ratio
Idle speed
Control
Valve diameter, intake
Valve diameter, exhaust
Valve clearance, cold, intake
Valve clearance, cold, exhaust
Crankshaft bearing
Conrod bearing
Piston pin bearing
Pistons (450 XC ATV)
Pistons (525 XC ATV)
Piston rings
Engine lubrication
Primary transmission
Clutch
Transmission ratio
1st gear
1-cylinder 4-stroke engine with balancer, water-cooled
448 cm³ (27.34 cu in)
510 cm³ (31.12 cu in)
72 mm (2.83 in)
89 mm (3.5 in)
95 mm (3.74 in)
11:1
1,500... 1,600 rpm
4 valves controlled via rocker arm and overhead camshaft,
camshaft drive via simplex chain
35 mm (1.38 in)
30 mm (1.18 in)
0.10... 0.15 mm (0.0039... 0.0059 in)
0.10... 0.15 mm (0.0039... 0.0059 in)
2 cylinder roller bearing
Needle bearing
Bronze bush
Cast light alloy
Forged light alloy
1 compression ring, 1 oil scraper ring
Pressure circulation lubrication with 2 rotor pumps
31:78 straight tooth spur gears
Multidisc clutch in oil bath / hydraulically activated
14:35
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