I got my nitro rustler out today after it being packed up for the winter(aus) and after all the pre-run lubing/cleaning/tightening etc i ran it for a tank and all was good. then i came back later and started it up and left it to idle for about 20secs while i got the body, it idles great didnt load up or wavering revs, just good. anyway as soon as the shell touched the car it died, since then i havent been able to keep it running. as soon as i take the glow starter off it dies, starts up 1st pull but wont run without the glow starter. i took the plug out and checked it, seemed fine. its a brand new plug, only got it today. any ideas?

thanks.