KTM 125 SX 2020 User Manual

TECHNICAL DATA 20
121
20.3.4 All 150 models
Carburetor type MIKUNI TMX 38
Carburetor identification number TMX 38 88
Needle position 3rd position from top
Jet needle 6BFY42‑71 (6BFY43‑71)
Main jet 470 (460, 480, 490, 500, 520)
Idling jet 30 (25 / 27.5 / 32.5 / 35)
Choke nozzle 80
Needle jet S‑4
Idle air adjusting screw
open 1.5 turns
20.3.5 Carburetor tuning (All 150 models)
MIKUNI TMX 38
ASL TEMP
−20 … −7 °C
(−4 … 19 °F)
−6 … 5 °C
(21 …
41 °F)
6 … 15 °C
(43 …
59 °F)
16 … 24 °C
(61 …
75 °F)
25 … 36 °C
(77 …
97 °F)
37 … 49 °C
(99 …
120 °F)
2,301 …
3,000 m
(7,549 …
9,843 ft)
ASO
IJ
NDL
POS
MJ
1.5
30
42-71
3
470
1.5
32.5
43-71
2
470
2
32.5
43-71
2
460
2
30
43-71
2
460
1.5
27.5
43-71
2
450
1,501 …
2,300 m
(4,925 …
7,546 ft)
ASO
IJ
NDL
POS
MJ
1.5
32.5
42-71
3
480
1.5
30
42-71
3
470
1.5
32.5
43-71
2
470
2
32.5
43-71
2
460
2
30
43-71
2
460
1.5
27.5
43-71
2
450
751 …
1,500 m
(2,464 …
4,921 ft)
ASO
IJ
NDL
POS
MJ
2
35
42-71
3
490
1.5
32.5
42-71
3
480
1.5
30
42-71
3
470
1.5
32.5
43-71
2
470
2
32.5
43-71
2
460
2
30
43-71
2
460
301 …
750 m
(988 …
2,461 ft)
ASO
IJ
NDL
POS
MJ
1.5
35
42-71
3
500
2
35
42-71
3
490
1.5
32.5
42-71
3
480
1,5
30
42‑71
3
470
1.5
32.5
43-71
2
470
2
32.5
43-71
2
460
0 …
300 m (0
… 984 ft)
ASO
IJ
NDL
POS
MJ
1.5
35
42-71
3
500
2
35
42-71
3
490
1.5
32.5
42-71
3
480
1.5
30
42-71
3
470
1.5
32.5
43-71
2
470
2
32.5
43-71
2
460
ASL Sea level
TEMP Temperature
ASO Idle air adjusting screw open
IJ Idling jet
NDL Needle
POS Needle position from top
MJ Main jet

KTM 125 SX 2020 Specifications

General

Brand	KTM
Model	125 SX 2020
Category	Motorcycle
Language	English