cotacrazy Posted July 15, 2011 Report Share Posted July 15, 2011 Hi all,its probably been asked already,but can anyone give me the correct jetting for a 300 pro? Just aquired one,and its running a bit rough,got no info,so a starting point would be appreciated. Cheers Quote Link to comment Share on other sites More sharing options...
rod Posted July 21, 2011 Report Share Posted July 21, 2011 yes i have the origional operation and maintenance manual for my fantic 303 professional. here you go. this is the settings for a dellorto phbh 26 sd carb maximum jet 100 minimum jet 48 starting jet 70 conical needle type 5 at second notch gas valve no.45 spray nozzle bn 264 float g. 8.3 open air screw 1 revolution i hope this helps. rod Quote Link to comment Share on other sites More sharing options...
ty250nl Posted July 22, 2011 Report Share Posted July 22, 2011 For the 300 there is a little difference according to my book. Carburator PHBH 26 BS Maximum jet 108 Needle X5 The rest is the same. Succes, Arie from Holland Quote Link to comment Share on other sites More sharing options...
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