22
TECHNICAL DATA
87
22.1
Engine
Design
1-cylinder 4-stroke engine, water-cooled
Displacement
449.3 cm³ (27.418 cu in)
Stroke
63.4 mm (2.496 in)
Bore
95 mm (3.74 in)
Compression ratio
12.6:1
Idle speed
2,250… 2,350 rpm
Control
OHC, 4 valves controlled via rocker arm
Valve diameter, intake
40 mm (1.57 in)
Valve diameter, exhaust
33 mm (1.3 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)
0.12… 0.17 mm (0.0047… 0.0067 in)
Crankshaft bearing
2 grooved ball bearings
Conrod bearing
Slide bearing
Piston pin bearing
Not a bearing bush - DLC-plated piston pins
Pistons
Forged light alloy
Piston rings
1 compression ring, 1 oil scraper ring
Engine lubrication
Pressure circulation lubrication with two Eaton pumps
Primary transmission
32:76
Clutch
Multidisc clutch in oil bath/hydraulically activated
Gearbox (SX
‑
F EU)
4-gear, claw shifted
Gearbox (SX
‑
F USA, XC
‑
F)
5-gear, claw shifted
Transmission ratio (SX
‑
F EU)
1st gear
16:32
2nd gear
18:30
3rd gear
20:28
4th gear
22:26
Transmission ratio (SX
‑
F USA, XC
‑
F)
1st gear
16:32
2nd gear
18:30
3rd gear
20:28
4th gear
22:26
5th gear
24:24
Alternator
12 V, 75 W
Ignition
Contactless controlled fully electronic ignition with digital igni-
tion adjustment
Spark plug
NGK LKAR8AI-9
Spark plug electrode gap
0.9 mm (0.035 in)
Cooling
Water cooling, permanent circulation of coolant by water pump
Starting aid
Electric starter
22.2
Engine tightening torques
Screw, membrane
M3
3 Nm (2.2 lbf ft)
Loctite
®
648™
Screw, cable holder in alternator cover
M4
4 Nm (3 lbf ft)
Loctite
®
243™
Screw, oil jet for piston cooling
M4
2 Nm (1.5 lbf ft)
Loctite
®
243™
Screw, stator
M4
4 Nm (3 lbf ft)
Loctite
®
648™
Oil nozzle, piston cooling
M5
2 Nm (1.5 lbf ft)
Loctite
®
243™
Oil nozzle, 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, crankshaft position sensor
M5
6 Nm (4.4 lbf ft)
Loctite
®
243™
Содержание 2015 450 SC-F USA
Страница 1: ...OWNER S MANUAL 2015 450 SX F EU 450 SX F USA 450 XC F USA Art no 3213176en ...
Страница 2: ......
Страница 100: ...24 AUXILIARY SUBSTANCES 98 Universal oil spray Recommended supplier Motorex Joker 440 Synthetic ...
Страница 105: ... 3213176en 3213176en 4 2014 KTM Sportmotorcycle AG 5230 Mattighofen Austria http www ktm com Photo Mitterbauer KTM ...