Fuel keeps getting cut off

[jonivtec]

I just finished my engine break-in, now if I go WOT the engine will cut off (basically like a normal car engine cut off).

What is the cause of this? Thanks!

 

[jonivtec]

Problem solved....I oversized the hole on top of the fuel cap.No more high rpm miss fire....no more needle adjustment...revert everything to stock...everything running like a champ.

Engine is peppy. Mixture is perfect strong take off. I will finish my 1/20 mixture and give some tweaking after with 1/25 mixtures.