Technical Data; Engine; Engine Tightening Torques - Husqvarna 2014 FC 250 EU Owner's Manual

22

TECHNICAL DATA

22.1

Engine

Design
Displacement
Stroke
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
Gearbox
Transmission ratio
1st gear
2nd gear
3rd gear
4th gear
5th gear
Alternator
Ignition
Spark plug
Spark plug electrode gap
Cooling
Starting aid
22.2

Engine tightening torques

Nozzle, crank chamber ventilation
Oil nozzle for alternator cooling
Oil nozzle for balancer shaft lubrication
Oil nozzle for conrod bearing lubrication
Screw, oil nozzle for piston cooling
Screw, stator
Locking screw for bearing
Oil nozzle for cam lever lubrication
Oil nozzle for clutch lubrication
Oil nozzle, piston cooling
Screw cap, oil channel in alternator
cover
Screw, crankshaft position sensor
Screw, locking lever
1-cylinder 4-stroke engine, water-cooled
249.91 cm³ (15.2505 cu in)
52.3 mm (2.059 in)
78 mm (3.07 in)
13.9:1
2,250... 2,350 rpm
DOHC, four valves controlled via cam lever, drive via timing chain
32.5 mm (1.28 in)
26.5 mm (1.043 in)
0.10... 0.15 mm (0.0039... 0.0059 in)
0.13... 0.18 mm (0.0051... 0.0071 in)
2 cylinder bearings
Slide bearing
Bearing bush
Forged light alloy
1 compression ring, 1 oil scraper ring
Pressure circulation lubrication with two Eaton pumps
24:73
Multidisc clutch in oil bath/hydraulically activated
5-gear, claw shifted
13:32
16:32
17:28
19:26
21:25
12 V, 66 W
Contactless controlled fully electronic ignition with digital ignition
adjustment
NGK LMAR9AI-8
0.8 mm (0.031 in)
Water cooling, permanent circulation of coolant by water pump
Electric starter
M4
M4
M4
M4
M4
M4
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)
2 Nm (1.5 lbf ft)
4 Nm (3 lbf ft)
6 Nm (4.4 lbf ft)
3 Nm (2.2 lbf ft)
6 Nm (4.4 lbf ft)
2 Nm (1.5 lbf ft)
3 Nm (2.2 lbf ft)
6 Nm (4.4 lbf ft)
6 Nm (4.4 lbf ft)
®
Loctite 243™
®
Loctite 243™
®
Loctite 243™
®
Loctite 243™
®
Loctite 243™
®
Loctite 648™
®
Loctite 243™
®
Loctite 243™
®
Loctite 243™
Loctite ® 243™
®
Loctite 243™
®
Loctite 243™
®
Loctite 243™
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