All 250 Models; All 300 Models - KTM 125 EXC 2016 Owner's Manual

22 TECHNICAL DATA
6th gear
Ignition
Spark plug
Spark plug electrode gap
Starting aid
22.1.3

All 250 models

Design
Displacement
Stroke
Bore
Exhaust valve - Beginning of adjustment
Crankshaft bearing
Conrod bearing
Piston pin bearing
Pistons
Piston rings
X (upper edge of piston to upper edge of cylinder)
Z (height of control flap)
Primary transmission
Clutch
Gearbox
Transmission ratio
1. gear
2. gear
3. gear
4. gear
5. gear
6. gear
Ignition
Spark plug
Spark plug electrode gap
Starting aid
22.1.4

All 300 models

Design
Displacement
Stroke
Bore
Exhaust valve - Beginning of adjustment
Crankshaft bearing
Conrod bearing
Piston pin bearing
Pistons
Piston rings
X (upper edge of piston to upper edge of cylinder)
Z (height of control flap)
Primary transmission
Clutch
22:20
Contactless controlled fully electronic ignition with digital igni-
tion adjustment, type Kokusan
NGK BR 8 EG
0.60 mm (0.0236 in)
Kick starter and electric 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)
5,625 rpm
1 grooved ball bearing/1 roller bearing
Needle bearing
Needle bearing
Aluminum cast
2 half keystone rings
0... 0.10 mm (0... 0.0039 in)
48 mm (1.89 in)
26:72
Multidisc clutch in oil bath/hydraulically activated
6-gear, claw shifted
14:32
16:26
20:25
22:23
25:22
26:20
Contactless controlled fully electronic ignition with digital igni-
tion adjustment, type Kokusan
NGK BR 7 ES
0.60 mm (0.0236 in)
Kick starter and electric starter
1-cylinder 2-stroke engine, water-cooled, with reed intake and
exhaust control
293.2 cm³ (17.892 cu in)
72 mm (2.83 in)
72 mm (2.83 in)
5,550 rpm
1 grooved ball bearing/1 roller bearing
Needle bearing
Needle bearing
Aluminum cast
2 rectangular rings
0... 0.10 mm (0... 0.0039 in)
48.5 mm (1.909 in)
26:72
Multidisc clutch in oil bath/hydraulically activated
121