mxracer_0141
PR Member
so i have a 2012 yz250 2 stroke. about 3 months old, rode it probably about 10-15 times at the very most. im having trouble with it in the midrange power with it cutting out, spitting and sputtering about quarter to half throttle. like if i wanna hold it half throttle and coast it in that speed up to a jump it spits and sputters real bad. in the bottom end and top end its strong as hell. i took the carb apart and dropped the main and pilot down one (stock 178 main, 50 pilot) down to 175 main and 48 pilot. didnt do anything, actually made it a little worse. i run a 36:1 mix with amsoil dominator pre mix with 110 octane gas. i read in my manual that i have to move my clip down one? im not a guru on jetting so im kind of in a rut on where to go with this. does anyone with a newer yz250 have any carb setting suggestions for me to have all around power throughout my whole throttle range? if anyone can help me id greatly appreciate it!