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View Full Version : 85' 250SX fuel air mixture screw setting



hiltu
11-05-2007, 10:12 PM
I just got me a mint, low hour, mostly original 1985 250sx. Somethings just bothering me about the carb and i don't currently have a manual so i was wondering if anyone knows the stock setting of the fuel air mixture screw. thanks

Dirtcrasher
11-06-2007, 05:14 PM
It's about 1.5 turns out from LIGHTLY bottomed in all the way. That is if the oring, needle and seat are ok. If it's an 85 you may have a hard starting carb in the cold. They sold a kit for it or the starter jet can simply be opened up a bit. Lots of posts on this stuff if you search a bit.