23 CARBURETOR
Carburetor type
Needle position (All 300 models)
Needle position (All 125/250/280 models)
Jet needle
Main jet (All 125 models)
Main jet (All 250 models)
Main jet (All 280 models)
Main jet (All 300 models)
Idling jet (All 125 models)
Idling jet (All 250 models)
Idling jet (All 280 models)
Idling jet (All 300 models)
Idle air adjusting screw (All 280 models)
open
Idle air adjusting screw (All 125/250/300 models)
open
102
KEIHIN PWK 28
Fourth position from top
3rd position from top
JJH
125
125
125
125
52
45
45
48
1 turn
1.25 turns