KTM 125 SX 2023 User Manual

ELECTRICAL SYSTEM 15
109
S05554-10
Main work
–
Pull starter relay
1
from the holder.
S05556-10
–
Take off protection caps
2
.
–
Remove faulty main fuse
3
.
Info
A faulty fuse has a burned-out fuse wire
A
.
A spare fuse
4
is located in the starter relay.
– Insert a new main fuse.
Fuse (58011109110) ( p. 132)
– Check that the electrical system is functioning properly.
Tip
Insert a spare fuse so that it is available if needed.
– Mount the protection caps.
– Mount the starter relay onto the holder and route the cable.
Finishing work
– Install the fuel tank. ( p. 70)
– Mount the seat. ( p. 60)
15.5 Changing the fuse of the fuel pump
Warning
Fire hazard Incorrect fuses overload the electrical system.
– Only use fuses with the required ampere value.
– Do not bypass or repair fuses.
Caution
Danger of burns The voltage regulator gets very hot when the vehicle is driven.
– Allow the voltage regulator to cool down before performing any work.
Info
The fuel pump is protected by the fuel pump fuse. This is located under the seat.
Preparatory work
– Remove the seat. ( p. 60)

KTM 125 SX 2023 Specifications

General

Displacement	124.8 cm³
Bore x Stroke	54 mm x 54.5 mm
Starter	Electric starter
Transmission	6-speed
Front Suspension	WP XACT-USD, Ø 48 mm
Rear Suspension	WP XACT Monoshock with linkage
Front Brake	Disc brake
Rear Brake	Disc brake
Ground Clearance	375 mm
Seat Height	950 mm
Weight (without fuel)	87.5 kg
Cooling	Liquid cooled
Front Tire	80/100-21"
Rear Tire	100/90-19"
Front Brake Diameter	260 mm
Rear Brake Diameter	220 mm
Engine Type	Single-cylinder, 2-stroke
Frame	Central tube frame made of chrome molybdenum steel
Fuel Tank Capacity	7.2 liters