Too embarrassed to even say this....but my initial re-teardown has led me to believe I didnt have the carbs all the way down and in their boots. Will get the tank off tonight and confirm.
ARRRRGH - and I've been riding and wrenching bikes for....hmm over 30 years
2006 KTM 450 EXC, 2004 KTM 200 EXC,
2000 KTM 380 EXC, 07 GasGas EC300, 06 Night Rod
2012 KTM 500 EXC - sold, 950 SER-sold (regret)
Prior: BMW XC, TE610, KLR 650, 07 KTM 990 Adv, and many more ...BMWs, Ducs, KTMs, Harleys