Carburetor - Basic Setting For Sandy Surfaces (All 125 Models) - KTM 125 SX 2020 Owner's Manual

20 TECHNICAL DATA
POS
MJ
20.3.3
Idle air adjusting screw
Open
Idling jet
Jet needle
Needle position
Main jet
120
Info
Do not use on sandy terrain.

Carburetor - basic setting for sandy surfaces (All 125 models)

Info
If the engine is not running smoothly, use a smaller main jet.
Needle position from top
Main jet
2 turns
37.5
6BFY42‑71
3rd position from top
580