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

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

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