Technical Data; Engine; Engine Tightening Torques - KTM 350 EXC-F 2017 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
First gear
Second gear
Third gear
Fourth gear
Fifth gear
Sixth gear
Alternator
Ignition
Spark plug
Spark plug electrode gap
Cooling
Starting aid
22.2

Engine tightening torques

Nozzle, crank chamber ventilation
Oil nozzle for alternator cooling
Oil nozzle for balancer shaft lubrication M4
Oil nozzle for clutch lubrication
Oil nozzle for conrod bearing lubrica-
tion
Screw, oil nozzle for piston cooling
Locking screw for bearing
Oil channel screw plug in alternator
cover
Oil nozzle for cam lever lubrication
Oil nozzle, piston cooling
Screw, bearing bolt, oil pump idler
gear
Screw, clutch spring
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
Plain bearing
No bearing bushes - DLC coated 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
2:32 PM
4:26 PM
8:25 PM
10:23 PM
25:22
26:20
12 V, 168 W
Contactless controlled fully electronic ignition with digital igni-
tion adjustment
NGK LMAR9AI-10
1.0 mm (0.039 in)
Water cooling, permanent circulation of coolant by water pump
Electric starter
M4
M4
M4
M4
M4
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)
2 Nm (1.5 lbf ft)
6 Nm (4.4 lbf ft)
1.2 Nm (0.89 lbf ft)
3 Nm (2.2 lbf ft)
2 Nm (1.5 lbf ft)
6 Nm (4.4 lbf ft)
6 Nm (4.4 lbf ft)
111
Loctite ® 243™
Loctite ® 243™
Loctite ® 243™
Loctite ® 243™
Loctite ® 243™
Loctite ® 243™
Loctite ® 243™
Loctite ® 648™
Loctite ® 243™
Loctite ® 243™
Loctite ® 243™
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