Dunn Posted May 5, 2023 Report Share Posted May 5, 2023 Hi fellow Fantic fans. I have a Fantic 200 (fm350) and wanted to know how to set the Delourto phb25 carb up right. When people talk about the idle screw being turned out 2 3/4 times are they reffering to the big Idle screw, or the fuel screw next to it. If so what is the best setting for the fuel screw. Also the needle being on the 3rd notch, is that the 3rd notch from the top or the bottom of the needle. Quote Link to comment Share on other sites More sharing options...
carl ekblom Posted May 7, 2023 Report Share Posted May 7, 2023 I don´t know about Fantic settings but normal is to close fuel screw lightly and then open until best idle. I then open fuel screw about 1/8-1/4 of a turn extra for trials use. You must test which setting is the best for you and count the turns. Needle notches usually are counted from top of needle. I would say that 3rd notch is no 3 from top. All settings should be documented. A good place is a laptop. Hope this is of any help Quote Link to comment Share on other sites More sharing options...
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