75 k-jet 240 has an idle prob. just recently developed-drops to almost cutout then up a few hundred over idle. then down ..up ..down...up..etc...occasionally smoothing out but not for very long.. only when engine is hot tho...cold it idles like a champ which says to me, 'hey man, its either the aux air valve or the cold start injector cause theres no amm or O2 sensor on this primitive thing'
im too much a sissy to stand out in the (extreme) cold and try stuff from skratch so...any other ideas or where would you start? aux air or csi?