Hi,
I have a DA 150 with about 2 hours run time . I am running the break in gas / oil mix. 32 to 1.
The carburetor is still at the factory setting 5/8 turn low 2 turns high. Today on my second flight the engine started to miss. When I landed I checked the temp at the cylinder and it was at 221 degrees. The air temperature was 84 degrees and the humidity was around 74% at sea level . I do have cooling baffles installed. I am relatively new to gas powered engines. I am looking for help , please no wise cracks or insults.
Thanks.
jef

Jef, 221 degrees isn't overheating but it's not optimum either. You forgot to mention prop size.

Rich

figueroa- First find somebody (if you do not already know) to teach you the proper way to adjust needles, it's VERY easy really. EVERY engine at the first run should be adjusted.

Here is a basic fool proof run down
#1 set high for peak then back off 200 rpm (WOT for no more than couple of seconds)
#2 set low for good transition and idle.
#3 re-set high again because low affects high.

Next, 221 is not hot. Check the thread I am posting below if you doubt it.

http://www.rcuniverse.com/forum/m_96.../tm.htm#964307

Thanks Guys,
I am running a 32 X 10 Mejzlik prop. Most of the guys that fly gas planes are at Joe Nall this week. I will seek help next week when they get back. Thanks again guys I really appreciate you help.

RTK , Thanks for the thread on engine temps interesting stuff.
jef