23 TECHNICAL DATA
107
23.1
Engine
Design
1-cylinder 4-stroke engine, water-cooled
Displacement (All 450 models)
449.3 cm³ (27.418 cu in)
Displacement (All 501 models)
510.4 cm³ (31.147 cu in)
Stroke (All 450 models)
63.4 mm (2.496 in)
Stroke (All 501 models)
72 mm (2.83 in)
Bore
95 mm (3.74 in)
Compression ratio
11,8:1
Idle speed
1,800… 1,900 rpm
Control
OHC, 4 valves controlled via rocker arm, drive via tooth/wheel
chain
Valve diameter, intake
40 mm (1.57 in)
Valve diameter, exhaust
33 mm (1.3 in)
Valve clearance
Exhaust at: 20 °C (68 °F)
0.12… 0.17 mm (0.0047… 0.0067 in)
Intake at: 20 °C (68 °F)
0.10… 0.15 mm (0.0039… 0.0059 in)
Crankshaft bearing
2 grooved ball bearings
Conrod bearing
Slide bearing
Piston pin bearing
No bearing bushes - DLC-plated piston pins
Pistons
Forged light alloy
Piston rings
1 compression ring, 1 oil scraper ring
Engine lubrication
Pressure circulation lubrication with two rotary pumps
Primary transmission
32:76
Clutch
Multidisc clutch in oil bath / hydraulically activated
Transmission ratio
1st gear
14:36
2nd gear
17:32
3rd gear
19:28
4th gear
22:26
5th gear
24:23
6th gear
26:21
Alternator
12 V, 200 W
Ignition
Contactless controlled fully electronic ignition with digital igni-
tion adjustment, type Kokusan
Spark plug
NGK LKAR 9AI - 10
Spark plug electrode gap
1.0 mm (0.039 in)
Cooling
Water, permanent circulation of coolant by water pump
Starter
Electric starter
23.2
Engine tightening torques
Screw, membrane
M3
1.5 Nm (1.11 lbf ft)
Loctite
®
243™
Oil jet, piston cooling
M4
2 Nm (1.5 lbf ft)
Loctite
®
243™
Screw, cable holder in alternator
cover
M4
4 Nm (3 lbf ft)
Loctite
®
243™
Oil jet, piston cooling
M5
2 Nm (1.5 lbf ft)
Loctite
®
243™
Oil jet, rocker arm lubrication
M5
2 Nm (1.5 lbf ft)
Loctite
®
243™
Screw, bearing retainer
M5
6 Nm (4.4 lbf ft)
Loctite
®
2701™
Screw, clutch spring retainer
M5
6 Nm (4.4 lbf ft)
–
Screw, ignition pulse generator
M5
6 Nm (4.4 lbf ft)
Loctite
®
243™
Screw, locking lever
M5
6 Nm (4.4 lbf ft)
Loctite
®
243™
Screw, oil filter cover
M5
6 Nm (4.4 lbf ft)
–
Screw, oil pump cover
M5
6 Nm (4.4 lbf ft)
Loctite
®
243™
Summary of Contents for FE 450 2016
Page 1: ...OWNER S MANUAL 2016 FE 450 FE 501 Art no 3402066en ...
Page 2: ......