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TECHNICAL DATA 22
133
22.1
Engine
Design
1-cylinder 4-stroke engine, water-cooled
Displacement
349.7 cm³ (21.34 cu in)
Stroke
57.5 mm (2.264 in)
Bore
88 mm (3.46 in)
Compression ratio
14.6:1
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)
0.08 … 0.15 mm (0.0031 … 0.0059 in)
Exhaust at: 20 °C (68 °F)
0.12 … 0.19 mm (0.0047 … 0.0075 in)
Crankshaft bearing
2 cylinder bearings
Conrod bearing
Slide 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 2 trochoidal
pumps
Primary transmission
24:72
Clutch
Multidisc clutch in oil bath/hydraulically activated
Gearbox (All FC models)
5-gear transmission, claw shifted
Gearbox (FX 350)
6-gear transmission, claw shifted
Transmission ratio (All FC models)
first-gear
14:28
second-gear
16:26
third-gear
18:24
fourth-gear
21:24
fifth-gear
22:21
Transmission ratio (FX 350)
first-gear
13:33
second-gear
16:30
third-gear
18:26
fourth-gear
22:26
fifth-gear
23:23
sixth-gear
26:22
Alternator
12 V, 70 W
Ignition
Contactless controlled fully electronic ignition with
digital ignition adjustment
Spark plug
NGK LMAR9AI-10
Spark plug electrode gap
1.0 mm (0.039 in)
Cooling
Water cooling, permanent circulation of coolant by
water pump
Starting aid
Starter motor