Technical Data 22; Engine; Engine Tightening Torques - KTM 300 EXC Owner's Manual

22.1

Engine

Design
Displacement
Stroke
Hole
Idle speed
Exhaust control - setting measurement
Crankshaft bearing
Conrod bearing
Piston pin bearing
Piston
Piston rings
Engine lubrication
X distance (upper edge of piston to upper edge of
cylinder)
Z distance (height of control flap)
Primary transmission
Clutch
Transmission
Transmission ratio
First gear
Second gear
Third gear
Fourth gear
Fifth gear
Sixth gear
Alternator
Ignition system
Spark plug
Spark plug electrode gap
Cooling
Starting aid
22.2

Engine tightening torques

Screw, inner membrane sheets
Screw, membrane support plate
Screw, outer membrane sheets
Screw, angle lever, exhaust control
Screw, bearing retainer
Screw, clutch spring retainer
1-cylinder 2-stroke engine, water-cooled, with reed
intake, exhaust control and transfer duct injection
293.15 cm³ (17.8892 cu in)
72 mm (2.83 in)
72 mm (2.83 in)
1,400 ... 1,500 rpm
2.3 mm (0.091
+ 0.2
− 0
1 grooved ball bearing/1 roller bearing
Needle bearing
Needle bearing
Cast aluminum
2 rectangular rings
Mixture oil lubrication
0 ... 0.10 mm (0 ... 0.0039 in)
49.5 mm (1.949 in)
26:73
Multidisc clutch in oil bath/hydraulically activated
6 gear transmission, claw shifted
14:32
16:26
20:25
22:23
25:22
26:20
12 V, 110 W
Contactless controlled fully electronic ignition with
digital ignition adjustment
NGK BR 7 ES
0.6 mm (0.024 in)
Water cooling, permanent circulation of coolant by
water pump
Electric starter system
EJOTDELTA PT ® 35x25
EJOTDELTA PT ® 30x12
EJOTDELTA PT ® 30x6
M5
M5
M5

TECHNICAL DATA 22

in)
+ 0.008
− 0
1 Nm (0.7 lbf ft)
1 Nm (0.7 lbf ft)
1 Nm (0.7 lbf ft)
6 Nm (4.4 lbf ft)
Loctite
6 Nm (4.4 lbf ft)
Loctite
6 Nm (4.4 lbf ft)
® 243™
® 243™
135