21
TECHNICAL DATA
97
21.1
Engine
21.1.1
125 SX EU, 125 SX US
Design
1-cylinder 2-stroke engine, water-cooled, with reed intake and
exhaust control
Displacement
124.8 cm³ (7.616 cu in)
Stroke
54.5 mm (2.146 in)
Bore
54 mm (2.13 in)
Crankshaft bearing
1 grooved ball bearing/1 roller bearing
Conrod bearing
Needle bearing
Piston pin bearing
Needle bearing
Pistons
Aluminum cast
Piston rings
2 half keystone rings
X (upper edge of piston to upper edge of cylinder)
0… 0.10 mm (0… 0.0039 in)
Z (height of control flap)
43.7 mm (1.72 in)
Primary transmission
23:73
Clutch
Multidisc clutch in oil bath/hydraulically activated
Gearbox
6-gear, claw shifted
Transmission ratio
1st gear
13:32
2nd gear
15:30
3rd gear
17:28
4th gear
20:28
5th gear
19:23
6th gear
22:24
Ignition
Contactless controlled fully electronic ignition with digital igni-
tion adjustment, type Kokusan
Ignition point (BTDC)
1.4 mm (0.055 in)
Spark plug
NGK BR9 ECMVX
Spark plug electrode gap
0.60 mm (0.0236 in)
Starting aid
Kick starter
21.1.2
150 SX EU, 150 SX US
Design
1-cylinder 2-stroke engine, water-cooled, with reed intake and
exhaust control
Displacement
143.6 cm³ (8.763 cu in)
Stroke
58.4 mm (2.299 in)
Bore
56 mm (2.2 in)
Crankshaft bearing
1 grooved ball bearing/1 roller bearing
Conrod bearing
Needle bearing
Piston pin bearing
Needle bearing
Pistons
Aluminum cast
Piston rings
2 half keystone rings
X (upper edge of piston to upper edge of cylinder)
0… 0.10 mm (0… 0.0039 in)
Z (height of control flap)
44.3 mm (1.744 in)
Primary transmission
23:73
Clutch
Multidisc clutch in oil bath/hydraulically activated
Gearbox
6-gear, claw shifted
Transmission ratio
1st gear
13:32
2nd gear
15:30
3rd gear
17:28
4th gear
20:28
Содержание 125 SX EU 2015
Страница 2: ......
Страница 112: ...21 TECHNICAL DATA 110 NDL Needle POS Needle position from above MJ Main jet Info Not for sandy surfaces...
Страница 124: ...23 AUXILIARY SUBSTANCES 122 Universal oil spray Recommended supplier Motorex Joker 440 Synthetic...
Страница 129: ...3213173en 3213173en 04 2014 KTM Sportmotorcycle AG 5230 Mattighofen Austria http www ktm com Photo Mitterbauer KTM...