Hi guys,
I notice most guys that use pipe burp their engines, before the first flight?? Is the reason to clear out the oil that is sitting in the pipe from previous flights?? Is it to help remove the after fun oil?? Most I've watched burp their engines don't run the engine long enough to clear or set a needle?? Is the reason to be sure the engine will start??  I don't burped my engine, I just take her to the circle and crank her over and most of the time she fires on the first flip. I usually let her run on the ground a little longer on my first flight and she just sit there and cries to get in the air. I know there has to be a good reason for burping the engine, to many do it, so it must be the way to do it?? I appreciate your input, just trying to figure out why I do everything wrong??
Gary

Depends also on how cold it is where you are! And maybe how long it's been since you ran it last.  Steve

Learned this from combat.  The secret to getting quick starts is having the engine in a known state, then figuring out what prime, flip etc it will make it run.  Then use the same steps every time. 

Burping it out sets the baseline.  Otherwise you don't know what fuel is in the cylinder, or crankcase.  Once I can get it to burp on prime, I know if the needle is set close, it will run.