Silversurfer thanks a lot bro for the help, and everyone else, I just wanted to know if the engine will lean out as it warms up. Now I know what to do.
by the way Silversurfer, what I mean by needles are set where they should be is simply the start point suggested by DA manual, I started there and tuned from there (using a tach/ear to do so), I guess I just need to set the needles a bit richer, or wait till the engine is fully warm (I thought a 20 seconds of idling at the ground is enough to warm the engine enough, but I guess I was wrong.
Flyer95, my engine is not that old (2-3 months old) so I don't think that the rubber parts dried out already, but that would be where I would look for next if richening the needles won't do it.
Thanks a lot for solving my puzzle guys
ORIGINAL: Silversurfer
The mixture settings of
all the gasses change as they warm up. If you are setting the needles for the best power when it is cold then it will go lean as it warms up. I have never heard of needles being set to "where they should be". That location can only be detertimed by the propeller, the temperature, the humidity, and the fuel used. When the engine is running correctly then, and only then, will the needles be set "where they should be".
Go here if it will link and spend a few minutes.
http://prme.nl/forum/viewtopic.php?t=10
If that doesn'y work go here, locate post #3.
http://www.rcuniverse.com/forum/m_4831738/tm.htm