All 250 Sx Models; Xc Us - KTM 150 SX 2017 Owner's Manual

21 TECHNICAL DATA
Sixth gear
Ignition
Spark plug
Spark plug electrode gap
Starting aid
21.1.3

All 250 SX models

Design
Displacement
Stroke
Hole
Exhaust valve, beginning of adjustment
Crankshaft bearing
Conrod bearing
Piston pin bearing
Piston
Piston rings
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
Ignition system
Spark plug
Spark plug electrode gap
Starting aid
21.1.4

250 XC US

Design
Displacement
Stroke
Hole
Exhaust valve, beginning of adjustment
Crankshaft bearing
Conrod bearing
Piston pin bearing
Piston
Piston rings
X distance (upper edge of piston to upper edge of cylinder)
Z distance (height of control flap)
Primary transmission
Clutch
Transmission
22:24
Contactless controlled fully electronic ignition with digital igni-
tion adjustment, type Kokusan
NGK BR9 ECMVX
0.60 mm (0.0236 in)
Kick starter
1-cylinder 2-stroke engine, water-cooled, with reed intake and
exhaust control
249 cm³ (15.19 cu in)
72 mm (2.83 in)
66.4 mm (2.614 in)
5,125 rpm
1 grooved ball bearing/1 roller bearing
Needle bearing
Needle bearing
Cast aluminum
2 half keystone rings
0... 0.10 mm (0... 0.0039 in)
49 mm (1.93 in)
26:73
Multidisc clutch in oil bath/hydraulically activated
5-gear, claw shifted
14:28
16:26
18:24
21:24
22:21
Contactless controlled, fully electronic ignition with digital igni-
tion adjustment, type Kokusan
NGK BR 8 ECM
0.60 mm (0.0236 in)
Kick starter
1-cylinder 2-stroke engine, water-cooled, with reed intake and
exhaust control
249 cm³ (15.19 cu in)
72 mm (2.83 in)
66.4 mm (2.614 in)
5,125 rpm
1 grooved ball bearing/1 roller bearing
Needle bearing
Needle bearing
Cast aluminum
2 half keystone rings
0... 0.10 mm (0... 0.0039 in)
49 mm (1.93 in)
26:73
Multidisc clutch in oil bath/hydraulically activated
6-gear, claw shifted
107