Well i redid the plumbing and engine is running fine.Thanks to everyone!My next question is how do i set the needle valves? I've got it pretty rich now on both needles,i think. It starts OK,and when i go to full throttle there is a nice smoke trail but when i go back to idle it will drop to a high idle for about four seconds and then drop all the way down to idle.Is that normal with four stokes or do i need to do some tweeking?