Not sure if this should be here or in the engine forum but here goes.

I have a OS .12 engine in my rc10gt. When I first start it, it starts like a dream, runs great. The problem I have is on the second tank and so on. It seems to be hard to start. It seems to flood almost instantly. I do not think the mixture is too rich as it runs very well. Is there any tricks that I should be doing? I can get it started but it seems it should fire right up and it does not.