i own a cyclone pro which i had out today when i first started the engine it was running fine i let it heat up before opening the throttle but after a few minutes it started dieing on full throttle and when i took the throttle off it was fine but its been running fine before so dont think its to rich or lean any advice? il upload a video soon so you can see it and listen

heres the video isnt the best but u can slightly hear it

http://www.youtube.com/watch?v=8CZXIevYx1E