Ok it fired up, good.
When it started and running rough was there a lot of fuel coming out of the exhaust? If so then it sounds too rich. Clear out any standing fuel in the engine now ie. remove plug and turn the engine over a few times. Hold a rag at the plug hole to avoid making a mess.
Close the LSN a further 1/4 -1/2 turn and try to start it again.
ETC: Serpent 411 Eryx 3.0 |Serpent 411 Eryx 2.0 | Serpent 411 TE | Xray T2 | Tamiya F104 V2
NTC: Serpent Cobra GT | Serpent 811 | Serpent 748 TQ | Mugen MTX-4
Heli's: Align TRex 500 EX | HK 500 x2