20 TECHNICAL DATA
114
20.3
Carburetor
Carburetor type
MIKUNI TMX 38
Carburetor identification number
TMX 38 87
Needle position
2nd position from top
Jet needle
6BFY43
‑
71 (6BFY42
‑
71)
Main jet
500 (480, 490, 520, 540, 560)
Idling jet
35 (30 / 32.5 / 37.5 / 40)
Choke nozzle
80
Needle jet
S
‑
7
Idle air adjusting screw
open
1.5 turns
20.3.1
Carburetor tuning
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
35
43-71
2
500
2
32.5
43-71
2
500
2
30
43-71
2
490
2
30
43-71
2
480
1.5
30
42-71
2
480
1,501 …
2,300 m
(4,925 …
7,546 ft)
ASO
IJ
NDL
POS
MJ
2
37.5
43-71
2
520
1.5
35
43-71
2
500
2
32.5
43-71
2
500
2
30
43-71
2
490
2
30
43-71
2
480
1.5
30
42-71
2
480
751 …
1,500 m
(2,464 …
4,921 ft)
ASO
IJ
NDL
POS
MJ
1.5
35
42-71
3
520
2
37.5
43-71
2
520
1.5
35
43-71
2
500
2
32.5
43-71
2
500
2
30
43-71
2
490
2
30
43-71
2
480
301 …
750 m (988
… 2,461 ft)
ASO
IJ
NDL
POS
MJ
1.5
37.5
42-71
3
540
1.5
35
42-71
3
520
2
37.5
43-71
2
520
1,5
35
43
‑
71
2
500
2
32.5
43-71
2
500
2
30
43-71
2
490
0 … 300 m
(0 … 984 ft)
ASO
IJ
NDL
POS
MJ
1.5
37.5
42-71
3
560
1.5
35
42-71
3
540
2
37.5
43-71
2
540
1.5
35
43-71
2
520
2
32.5
43-71
2
500
2
30
43-71
2
490
ASL
Sea level
TEMP
Temperature
ASO
Idle air adjusting screw open
IJ
Idling jet
NDL
Needle
POS
Needle position from top
MJ
Main jet
