ORIGINAL: hsukaria
I have a Fox 74 Eagle IV with the EZ carb (single needle, airbleed idle adjust). I have not started it yet (bought it used) and have never owned or operated a Fox or a single-needle carb. Do I adjust the high speed needle first? Or do I work on the idle adjustment first?
I would simply turn ther high speed out a few turns and fire it up. Then let it run extra rich for a while at lower RPMs to get it lubed up good first, then start leaning it out some. the idle adjustment on the EZ carb doesn't affect the high speed adjustment, so after you have it running Ok on the rich side, then tweak the idle adjustment. Then just in case, check the high speed again too.