Ok, my engine starts up really well and idles good, but when I throttle just even slightly, the engine shuts off. I played around with the needle going back and forth from rich to lean but still won't help. What is the problem here? Even just a slight throttle the motor shuts off. I thought it was too rich but seems that's not the case.

Well if the carb. is set correctly then check the clutch assemble make sure that the bearings arent worn and the shoes arent sticking, RED

try adjusting the LSN, wich is located where the little rod from the servo connects to the carb it ould b to rich

Thanks guys, I'm finally up and running! I had to break in the engine alot. I went throught about 10 tanks of gas to finally be able to drive it.