TECHNICAL DATA - CARBURETOR
101
22.1
All EXC
‑
F models
Carburetor type
KEIHIN FCR-MX 39
Carburetor identification number
3900H
Needle position
3rd position from top
Idle mixture adjusting screw
Open
1.25 turns
Pump diaphragm stop
2.15 mm (0.0846 in)
Main jet
168
Jet needle
OBDYS (OBETP)
Idling jet
42
Idle air jet
100
Cold start jet
65 (85)
Leakage nozzle
70
Slide stop
present
22.2
XCF
‑
W SIX DAYS
Carburetor type
KEIHIN FCR-MX 39
Carburetor identification number
3900K
Needle position
3rd position from top
Idle mixture adjusting screw
Open
1.5 turns
Pump membrane stop
2.15 mm (0.0846 in)
Main jet
168
Jet needle
OBEKT
Idling jet
42
Idle air jet
100
Cold start jet
85
Leakage nozzle
50