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

23

TECHNICAL DATA

23.1

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
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
23.2

Engine tightening torques

Oil jet, piston cooling
Screw, cable holder in alternator cover
Oil jet, piston cooling
Oil jet, rocker arm lubrication
Screw, bearing retainer
Screw, clutch spring retainer
Screw, ignition pulse generator
Screw, locking lever
Screw, oil filter cover
Screw, oil pump cover
Screw, stator
1-cylinder 4-stroke engine, water-cooled
449.3 cm³ (27.418 cu in)
510.4 cm³ (31.147 cu in)
63.4 mm (2.496 in)
72 mm (2.83 in)
95 mm (3.74 in)
11,8:1
1,950... 2,050 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 (0.0047... 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
12 V, 200 W
Contactless controlled fully electronic ignition with digital ignition
adjustment, type Kokusan
NGK LKAR 8AI - 9
0.9 mm (0.035 in)
Water, permanent circulation of coolant by water pump
Electric starter
M4
M4
M5
M5
M5
M5
M5
M5
M5
M5
M5
2 Nm (1.5 lbf ft)
4 Nm (3 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)
6 Nm (4.4 lbf ft)
6 Nm (4.4 lbf ft)
6 Nm (4.4 lbf ft)
6 Nm (4.4 lbf ft)
102
®
Loctite 243™
®
Loctite 243™
®
Loctite 243™
®
Loctite 243™
®
Loctite 2701™
–
®
Loctite 243™
®
Loctite 243™
–
®
Loctite 243™
®
Loctite 243™