KTM 250 EXC RACING 2004 Owner's Manual page 52

BASIC CARBURATOR SETTING
Type
Carburator-setting number
Main jet
Jet needle
Idling jet
Main air jet
Idling air jet
Needle position
Starting jet
Mixture control screw open
Slide
Performance restrictor
Stop pump membrane
Hot start device
BASIC CARBURATOR SETTING
Type
Carburator-setting number
Main jet
Jet needle
Idling jet
Main air jet
Idling air jet
Needle position
Starting jet
Mixture control screw open
Slide
Performance restrictor
Stop pump membrane
Hot start device
250 EXC RACING 250 EXC RACING
Six Days
Keihin FCR-MX 37 Keihin FCR-MX 37
3700A
160
OBETP
42
200
100
3. rd from top 3. rd from top
85
1,25
15
– Slide stop
858 / 2,15 mm 858 / 2,15 mm
–
525 EXC RACING 525 EXC RACING
525 MXC RACING
Six Days
Keihin FCR-MX 39 Keihin FCR-MX 39
3900A
178
OBDTN
42
200
100
2. rd from top 3. rd from top
85
1,5
15
– Slide stop
858 / 2,15 mm 858 / 2,15 mm
–
450 EXC RACING
11 kW 12 kW
Keihin FCR-MX 39
3700A 3900A
160 178
OBEKT OBDVR
42 42
200 200
100 100
3. rd from top
85 85
0,75 1,25
15 15
Slide stop
858 / 2,15 mm
– –
525 SX RACING
12 kW
Keihin FCR-MX 41
3900B 4125A
178 185
OBDVT OBDTP
42 42
200 200
100 100
4. rd from top
85 85
1,25 1,5
15 15
–
858 / 2,15 mm
– 2,5 mm
450 SX RACING
Keihin FCR-MX 41
4122A
185
OBDTP
40
200
100
4. rd from top
85
1
15
–
858 / 2,15 mm
2,2 mm
51