Carburetor; Carburetor Tuning - GAS GAS MC 85 2021 Owner's Manual

20 TECHNICAL DATA
20.3
Carburetor type
Needle position
Idle air adjusting screw
open
Main jet
Jet needle
Idling jet
Throttle slide
Choke nozzle
20.3.1
KEIHIN PWK 28
ASL
2,301 ...
3,000 m
(7,549 ...
9,843 ft)
1,501 ...
2,300 m
(4,925 ...
7,546 ft)
751 ...
1,500 m
(2,464 ...
4,921 ft)
301 ...
750 m (988
... 2,461 ft)
0 ... 300 m
(0 ... 984 ft)
ASL
TEMP
ASO
IJ
NDL
POS
MJ
112

Carburetor

Carburetor tuning

−20 ... −7 °C
TEMP
(−4 ... 19 °F)
ASO 2
IJ 45
NDL NRK C
POS 3
MJ 142
ASO 2
IJ 48
NDL NRK C
POS 3
MJ 145
ASO 2
IJ 48
NDL NRJ C
POS 4
MJ 145
ASO 2
IJ 48
NDL NRJ C
POS 4
MJ 148
ASO 2
IJ 48
NDL NRJ C
POS 4
MJ 148
KEIHIN PWK 28
3rd position from top
2 turns
142 (140, 145, 148)
NRKC (NRJC)
48 (45, 50)
3
62
−6 ... 5 °C
6 ... 15 °C (43
(21 ... 41 °F) ... 59 °F)
2 1.5
42 42
NRK C NRJ C
3 3
142 140
2 2
45 42
NRK C NRK C
3 3
142 142
2 2
48 45
NRK C NRK C
3 3
145 142
1.5 2
48 48
NRK C NRK C
3 3
148 145
1.5 2
48 48
NRK C NRK C
3 3
148 145
Sea level
Temperature
Idle air adjusting screw open
Idling jet
Needle
Needle position from top
Main jet
16 ... 24 °C 25 ... 36 °C
(61 ... 75 °F) (77 ... 97 °F)
2 1.5
42 40
NRJ C NRJ C
3 3
138 138
1.5 2
42 42
NRJ C NRJ C
3 3
140 138
2 1.5
42 42
NRK C NRJ C
3 3
142 140
2 2
45 42
NRK C NRK C
3 3
142 142
2 2
48 45
NRK C NRK C
3 3
142 142
37 ... 49 °C
(99 ...
120 °F)
1.5
40
NRJ C
3
138
2
42
NRJ C
3
138
1.5
42
NRJ C
3
140
1.5
42
NRK C
3
140