TECHNICAL DATA - ENGINE
160
Design
Single cylinder 4-stroke engine, water-cooled
Displacement (450 SX ATV)
449.3 cm³ (27.418 cu in)
Displacement (505 SX ATV)
477.5 cm³ (29.139 cu in)
Stroke
60.8 mm (2.394 in)
Bore (450 SX ATV)
97 mm (3.82 in)
Bore (505 SX ATV)
100 mm (3.94 in)
Compression ratio
12.5:1
Idle speed
1,500… 1,600 rpm
Control
DOHC, four valves controlled via cam lever, drive via helical gear
pair and tooth-wheel chain
Valve diameter, intake
40.4 mm (1.591 in)
Valve diameter, exhaust
31.7 mm (1.248 in)
Valve clearance, cold, intake
0.07… 0.13 mm (0.0028… 0.0051 in)
Valve clearance, cold, exhaust
0.12… 0.18 mm (0.0047… 0.0071 in)
Crankshaft bearing
2 cylinder roller bearing
Conrod bearing
Needle bearing
Piston pin bearing
Bronze bush
Pistons
Forged light alloy
Piston rings
1 compression ring, 1 oil scraper ring
Engine lubrication
Pressure circulation lubrication with 3 rotor pumps
Primary transmission
26:78 straight tooth spur gears
Clutch
Multidisc clutch in oil bath/hydraulically activated
Transmission ratio
1st gear
16:34
2nd gear
19:31
Summary of Contents for 450 SX ATV
Page 1: ...OWNER S MANUAL 2010 450 SX ATV 505 SX ATV Art no 3211488en ...
Page 2: ......
Page 8: ...TABLE OF CONTENTS 6 INDEX 183 ...
Page 14: ...VIEW OF VEHICLE 12 3 1 View of the vehicle from the left front example 301769 10 ...
Page 16: ...VIEW OF VEHICLE 14 3 2 View of the vehicle from the right rear example 301770 10 ...