KTM 125 SX 2020 User Manual

SERVICE WORK ON THE ENGINE 16
109
K01182-10
Main work
–
Remove gear oil level monitoring screw
1
.
401955-11
–
Remove filler plug
2
with the O-ring.
– Add gear oil until it emerges from the drill hole of the gear oil
level monitoring screw.
Engine oil (15W/50) ( p. 128)
– Mount and tighten the gear oil level monitoring screw.
Guideline
Screw, gear oil level
monitoring
M6 8 Nm (5.9 lbf ft)
–
Mount and tighten filler plug
2
with the O-ring.
Finishing work
Danger
Danger of poisoning Exhaust gases are toxic and inhal-
ing them may result in unconsciousness and death.
–
Always make sure there is sufficient ventilation
when running the engine.
– Use effective exhaust extraction when starting or
running the engine in an enclosed space.
– Start the engine and check that it is oil-tight.

KTM 125 SX 2020 Specifications

General

Engine Type	1-cylinder, 2-stroke engine
Displacement	124.8 cm³
Bore x Stroke	54 mm x 54.5 mm
Starter	Kickstarter
Transmission	6-speed
Front Brake	Disc brake
Rear Brake	Disc brake
Ground Clearance	375 mm
Seat Height	950 mm
Clutch	Wet, multi-disc clutch, Brembo hydraulics
EMS	Kokusan
Frame	Central double-cradle type, 25CrMo4 steel
Front Suspension	WP XACT-USD, Ø 48 mm
Rear Suspension	WP XACT shock absorber with linkage
Fuel Tank Capacity	7.5 liters
Fuel System	Keihin carburetor