Technical Data; Engine; Engine Tightening Torques - Husqvarna FE 450 Owner's Manual

22

TECHNICAL DATA

22.1

Engine

Design
Displacement (All 450 models)
Displacement (All 501 models)
Stroke (All 450 models)
Stroke (All 501 models)
Bore
Compression ratio
Idle speed
Control
Valve diameter, intake
Valve diameter, exhaust
Valve clearance
Intake at: 20 °C (68 °F)
Exhaust at: 20 °C (68 °F)
Crankshaft bearing
Conrod bearing
Piston pin bearing
Pistons
Piston rings
Engine lubrication
Primary transmission
Clutch
Transmission ratio
First gear
Second gear
Third gear
Fourth gear
Fifth gear
Sixth gear
Alternator
Ignition
Spark plug
Spark plug electrode gap
Cooling
Starting aid
22.2

Engine tightening torques

Oil jet, piston cooling
Oil nozzle for clutch lubrication
Oil nozzle, piston cooling
Oil nozzle, rocker arm lubrication
Pulse generator screw and cable
retainer
Screw, bearing retainer
Screw, clutch spring retainer
Screw, gear position sensor
Screw, locking lever
Screw, stator
Screw, suction pump cover
1-cylinder 4-stroke engine, water-cooled
449.9 cm³ (27.455 cu in)
510.9 cm³ (31.177 cu in)
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
40 mm (1.57 in)
33 mm (1.3 in)
0.10... 0.15 mm (0.0039... 0.0059 in)
0.12... 0.17 mm (0.0047... 0.0067 in)
2 grooved ball bearings
Slide bearing
Not a bearing bush - DLC-plated piston pins
Forged light alloy
1 compression ring, 1 oil scraper ring
Pressure circulation lubrication with two Eaton pumps
31:76
Multidisc clutch in oil bath, hydraulically activated
14:36
17:32
19:28
22:26
23:24
26:21
12 V, 168 W
Contactless controlled fully electronic ignition with digital igni-
tion adjustment
NGK LKAR9AI-10
1.0 mm (0.039 in)
Water cooling, permanent circulation of coolant by water pump
Electric starter
M4
M5
M5
M5
M5
M5
M5
M5
M5
M5
M5
2 Nm (1.5 lbf ft)
2 Nm (1.5 lbf ft)
2 Nm (1.5 lbf ft)
2 Nm (1.5 lbf ft)
6 Nm (4.4 lbf ft)
6 Nm (4.4 lbf ft)
6 Nm (4.4 lbf ft)
5 Nm (3.7 lbf ft)
6 Nm (4.4 lbf ft)
6 Nm (4.4 lbf ft)
6 Nm (4.4 lbf ft)
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Loctite 243™
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Loctite 243™
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Loctite 243™
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Loctite 243™
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Loctite 243™
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Loctite 243™
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Loctite 243™
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Loctite 243™
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Loctite 243™
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Loctite 243™