Make sure your glow plug is working and igniter is charged, sometimes that's the problem.
Try to set the neddles back to factory setting. If you don't have that info set the low speed neddle flush and high speed needle 2 1/2 turns from closed. keep checking the temp so you don't run it too lean.
Let me know if it worked for you!
Xray NT1 '08 /'09 EC LRP12R / Serpent 720 '08 RB Concept V12, R3 RB mods, V12 Rody, Matrix RW / Serpent 733, 733TE RB T9 / EA RC8T OS .21 Vspec speed tuned / Kyosho Inferno GT, GT2 / EA SC10 / Serpent Cobra GT coming soon!