23
TECHNICAL DATA
202
23.1
Engine
Design
1-cylinder 4-stroke engine, water-cooled
Displacement
349. 7 cm
3
(21.34 cu in)
Stroke
57.5 mm (2.264 in)
Bore
88 mm (3.46 in)
Compression ratio
13,65:1
Idle speed
2,250 ... 2,350 rpm
Control
DOHC, four valves controlled via cam lever, drive via timing
chain
Valve diameter, intake
36.3 mm (1.429 in)
Valve diameter, exhaust
29.1 mm (1.146 in)
Valve clearance
Intake at: 20 °C (68 °F)
0.10 ... 0.15 mm (0.0039 ... 0.0059 in)
Exhaust at: 20 °C (68 °F)
0.13 ... 0.18 mm (0.0051 ... 0.0071 in)
Crankshaft bearing
2 cylinder bearings
Conrod bearing
Plain bearing
Piston pin bearing
Bearing bush
Pistons
Forged light alloy
Piston rings
1 compression ring, 1 oil scraper ring
Engine lubrication
Pressure circulation lubrication with two Eaton pumps
Primary transmission
24:73
Clutch
Multidisc clutch in oil bath/hydraulically activated
Gearbox
5-gear, claw shifted
Transmission ratio
1st gear
14:28
2nd gear
16:26
3rd gear
18:24
4th gear
21 :24
5th gear
22:21
Alternator
12V, 66W
Ignition
Contactless controlled fully electronic ignition with digital igni-
tion adjustment
Spark plug
NGK LMAR9Al-8
Spark plug electrode gap
0.8 mm (0.031 in)
Cooling
Water cooling, permanent circulation of coolant by water pump
Starting aid
Electric starter
23.2
Engine tolerance, wear limits
Camshaft bearing - sleeve bearing
Radial clearance
0.020 ... 0.054 mm (0.00079 ... 0.00213 in)
Wear limit
0.065 mm (0.00256 in)
Valve spring
Minimum length of intake valve
41.20 mm (1 .622 in)
Minimum length of exhaust valve
41.10 mm(1.6181 in)
Valve - sealing seat width
Intake
1 .40 mm (0.0551 in)
Exhaust
1 .40 mm (0.0551 in)
Valve - run-out
At the valve plate
s: 0.05 mm (S: 0.002 in)
At the valve stem
s: 0.05 mm (S: 0.002 in)
Valve spring seat - thickness
1.40 ... 1.60 mm (0.0551 ... 0.063 in)
Summary of Contents for FC 350 2014
Page 1: ...PIONEERING SINCE 1903 REPAIR MANUAL2014 FC 350 EU Art no 3403006en Husqvarna MOTORCYCLES ...
Page 2: ......
Page 90: ...12 FUEL TANK SEAT TRIM Start the motor and check the response 88 ...
Page 192: ...18 CLUTCH 190 Position the cover with the membrane Mount and tighten the screws ...
Page 236: ...30 SPECIAL TOOLS 234 Nitro en filling tool Art no T170S1 2x 3x T170S1 H00855 01 ...