26 Technical Data; Engine - Husqvarna FE 450 2016 Repair Manual

26.1

Engine

Design
Displacement (FE 450 EU/AU, FE 450 US)
Displacement (FE 501 EU, FE 501 AU, FE 501 US,
FE 501 SUS)
Stroke (FE 450 EU/AU, FE 450 US)
Stroke (FE 501 EU, FE 501 AU, FE 501 US,
FE 501 SUS)
Bore
Compression ratio
Idle speed
Control
Valve diameter, intake
Valve diameter, exhaust
Valve clearance
E xhaust at: 20 °C (68 °F)
Intake at: 20 °C (68 °F)
Crankshaft bearing
Conrod bearing
Piston pin bearing
Pistons
Piston rings
E ngine lubrication
Primary transmission
Clutch
Transmission ratio
1st gear
2nd gear
3rd gear
4th gear
5th gear
6th gear
A lternator
Ignition
Spark plug
Spark plug gap
Cooling
Starter
1-cylinder 4-stroke engine, water-cooled
449.3 cm (27.418 cu in)
3
510.4 cm (31.147 cu in)
3
63.4 mm (2.496 in)
72 mm (2.83 in)
95 mm (3.74 in)
11,8:1
1,800 ... 1,900 rpm
OHC, 4 valves controlled via rocker arm, drive via
tooth/wheel chain
40 mm (1 .57 in)
33 mm (1 .3 in)
0.12 ... 0.17 mm (0.004 7 ... 0.0067 in)
0.10 ... 0.15 mm (0.0039 ... 0.0059 in)
2 grooved ball bearings
Slide bearing
No bearing bushes - DLC-plated piston pins
Forged light alloy
1 compression ring, 1 oil scraper ring
Pressure circulation lubrication with two rotary
pumps
32:76
Multidisc clutch in oil bath / hydraulically activated
14:36
17:32
19:28
22:26
24:23
26:21
12V, 200W
Contactless controlled fully electronic ignition with
digital ignition adjustment, type Kokusan
NGK LKAR 9AI - 10
1.0 mm (0.039 in)
Water, permanent circulation of coolant by water
pump
E lectric starter

26 TECHNICAL DATA

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