I read that the earlier old batch had this problem and I thought you could complain to them and have it returned for a new one. I may be wrong. The new ones now spot a different carb and does not have this problem.
How can you tell between the new and the old one ? I know that there is a difference on the mid-range needle adjustment. I think the old one was a phillips and the new one is a alum. finish hex. I dunno, I may be wrong.
Thanks guys. I did it buy unscrewing the idle needle all the way out. Yeah I have the newer carb with no mid range adjustment. I had air leaks in the turbo button before and got it fix. Then the slide piston was catching on the idle needle. But I took it out last night and grind it down abit. It is perferct now. Thanks for all your reply. The engine is great.