Specifications; Technical Data - Engine - KTM 50 SX PRO JUNIOR LC Owner's Manual

TECHNICAL DATA – ENGINE
Engine
Design
Displacement
Bore/Stroke
Fuel
Oil/gasoline ratio
Lubrication
Crankshaft bearing
Connecting rod bearing
Piston pin bearing
Piston rings
Primary drive
Transmission oil
Spark plug
Electrode gap
Carburetor
Air filter
Cooling liquid
BASIC CARBURETOR SETTING
Model
Type
Main jet
Needle jet
Idling jet
Jet needle
Needle position from top
Air/Mixture reg. screw open
Slide
Starting jet
TIGHTENING TORQUES - ENGINE
Primary gear nut
Hexagon nut ignition rotor
Nut of clutch hub
Cylinder head screws
Cylinder base nuts
Allan head screw-Stator
Oil plug
Oil drain plug
Other engine screws
50 SX PRO JUNIOR LC
single cylinder 2-stroke engine, with reed valve inlet
SUPER fuel, research octane no 95, mixed with 2-stroke oil
1 : 40 when using high grade 2-stroke oil (Shell Advance Racing X)
When in doubt, please contact your importer or use 1 : 33 mix ratio to be on the safe side
0.15-0,2 liter automatic gear oil Dexron II (Shell Donax TA)
DellOrto PHVA 14 DS
0.5 litres, 40% antifreeze, 60% water, at least -25 °C (-13 °F)
50 SX PRO JUNIOR LC
Dell'Orto PHVA 14 DS
80
211 FA
45
A10
3.
3.5
40
60
M14x1,25
M10x1,25
M10x1,25
M7
M8
M5x25
M16
M10
M5
M6
M8
50 LC
49.0 ccm
39.5 / 40 mm
mixture lubrication
2 grooved ball bearing
needle bearing
needle bearing
1 rectangular ring
straight cut spur gears, 16 : 57 Z
NGK BR 8 ECM
0.6 mm
wet foam type air filter insert
50 SX PRO SENIOR LC
Dell'Orto PHBG 19 BS
85
260 AU
48
W9
3.
3.0
60
60
40 Nm
20 Nm
Loctite 243 + 35 Nm
15 Nm
18 Nm
Loctite 243 + 8 Nm
5 Nm
15 Nm
7 Nm
10 Nm
30 Nm
2003
50 SX PRO SENIOR LC
Dell'Orto PHBG 19 BS
31