Technical Data; Engine; Engine Tightening Torques - KTM 350 EXC-F Owner's Manual

22

TECHNICAL DATA

22.1

Engine

Design
Displacement
Stroke
Bore
Compression ratio
Idle speed
Control
Valve diameter, intake
Valve diameter, exhaust
Valve clearance
Intake at: 20 °C (68 °F)
Exhaust at: 20 °C (68 °F)
Crankshaft bearing
Conrod bearing
Piston pin bearing
Pistons
Piston rings
Engine lubrication
Primary transmission
Clutch
Transmission ratio
1st gear
2nd gear
3rd gear
4th gear
5th gear
6th gear
Alternator
Ignition
Spark plug
Spark plug electrode gap
Cooling
Starting aid
22.2

Engine tightening torques

Jet, crank chamber ventilation
Oil jet for alternator cooling
Oil jet for balancer shaft lubrication
Oil nozzle for conrod bearing lubrica-
tion
Screw, oil jet for piston cooling
Locking screw for bearing
Oil jet for cam lever lubrication
Oil jet for clutch lubrication
Oil jet, piston cooling
Screw cap, oil channel in alternator
cover
Screw, clutch spring
Screw, crankshaft position sensor
1-cylinder 4-stroke engine, water-cooled
349.7 cm³ (21.34 cu in)
57.5 mm (2.264 in)
88 mm (3.46 in)
12.3:1
1,950... 2,050 rpm
DOHC, four valves controlled via cam lever, drive via timing
chain
36.3 mm (1.429 in)
29.1 mm (1.146 in)
0.10... 0.15 mm (0.0039... 0.0059 in)
0.13... 0.18 mm (0.0051... 0.0071 in)
2 cylinder bearings
Needle bearing
Not a bearing bush - DLC-plated piston pins
Forged light alloy
1 compression ring, 1 oil scraper ring
Pressure circulation lubrication with two Eaton pumps
24:73
Multidisc clutch in oil bath/hydraulically activated
14:32
16:26
20:25
22:23
25:22
26:20
12 V, 168 W
Contactless controlled fully electronic ignition with digital igni-
tion adjustment
NGK LMAR9AI-8
0.8 mm (0.031 in)
Water cooling, permanent circulation of coolant by water pump
Kick starter and electric starter
M4
M4
M4
M4
M4
M5
M5
M5
M5
M5
M5
M5
2 Nm (1.5 lbf ft)
2 Nm (1.5 lbf ft)
2 Nm (1.5 lbf ft)
2 Nm (1.5 lbf ft)
2 Nm (1.5 lbf ft)
6 Nm (4.4 lbf ft)
3 Nm (2.2 lbf ft)
6 Nm (4.4 lbf ft)
2 Nm (1.5 lbf ft)
3 Nm (2.2 lbf ft)
6 Nm (4.4 lbf ft)
6 Nm (4.4 lbf ft)
101
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Loctite 243™
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Loctite 243™
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Loctite 243™
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Loctite 243™
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Loctite 243™
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Loctite 243™
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Loctite 243™
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Loctite 243™
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Loctite 243™
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Loctite 243™
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Loctite 243™