Hi,im running a da50 in my wildhare edge,seems to run fine,does not feel like its missing,but it has a gurgaling sound to it.Someone told me this is cause the engine is not broken in yet,and it will clear up,another idiot at the field said its got a miss,although i dont think this guy knows what hes talking about,he has me thinking now,has anyone else heard this sound on a newer da-50?its got a couple of gallons ran threw it,but no real ballistic flying on it yet,mostly half throttle flights.

It's rich, the low end especially. Lean the low end for a good transition after idling 15 seconds.

Thanks,ive leaned the top end,but have not touched the low end.I'll give it a try.

Ive been nervous to touch the low end,guys at the field were saying just adjust the top end a little,so ive left it alone,until now.

Just go ahead and adjust. If it is too lean on the low end it will not transtion well. Play with it on the ground and you will see what I mean. Mine has been adjusted and it still barely has the "gurgle". You will be amazed at how much the engine idle will increase as you lean it out. I did this with the cowling off just messing around. Only ran it for short periods of time, constantly checked the cylinder temp with my temp gun. I could tell when it was too lean by the transition and head temp. Just had to know......

about how much did you turn yours in?i guess ill start with a 1/8" turn.

My new DA 50 has the same sound in the air. It is new and I have only run it a couple of tanks. I guess is rich in the low end and I will be leaning it a small step at a time as the breaking in progresses. I have adjusted the needles and the transition and idle are good so I will keep the low end a little rich for the first gallon of fuel.
It sounds good in the ground though, so maybe I have an airflow problem with the cowl. I will deal with that later in case leaning the low end and the breaking in don´t cure the problem.
Andres

Go ahead and lean the bottom end down a little, I would go 1/16th of a turn at a time, they are real sensitive on the needles. The gurgling or "burble" as they call it will eventually go away, but it will take several gallons before that happens.

Tom

The high end has minimal effect on the engine. The low end is 75% of the tuning according to Jeff at DA. Like others have said lean it a little at a time until it's better.

To adjust the low end:

Lean low needle til you have a crisp transition after idle for 10-15 seconds, then turn a little more lean when it starts to "hesitate" or even die when you goose the throttle to full for 2 seconds, then back it up until that hesitation disappears.

Then always reset your high end after you adjust the low end...

Check the RPMS... adjust leaner until the RPMS peak then start to drop slightly... back up until you have about 100 rpm below peak. If a new engine, 300 rpm below peak.

Wtach head temperature... you don't want more than 200... and 180-190 is ideal.

Once you have these three things in the groove you can fly with full confidence...

Don't be in a hurry... take your time and let the engine sit off for a few minutes between tests. Start the engine and let idle for about one minute to warm to temp before each test.

Cut the engine, make the adjustment and again let it sit for a couple minutes, start, wait for a minute then proceed with your next test.

Nice write up David.

thanks, that puts it short and sweet,,,