Cyborg,


I suggest you redo the break-in using [link=http://www.rcuniverse.com/forum/m_1850473/anchors_1850473/mpage_1/key_break%252Din%252Ctapered%252Dbore/anchor/tm.htm#1850473]this thread[/link] for guidance.

Doing the break-in in flight may be perfectly OK for Jim (w8ye), who is an experienced expert on engines, but for someone who is a bit less experienced, you are risking a lean condition, which has not been foreseen.

It is much safer to run the first two-three tanks with extra Castor oil, on the ground, where you can always adjust the needle, should anything prove wrong.


I know TT engines are pretty loose to begin with, but would the risk of a lean run (which will put your $55 Dollars to waste) be comparable to ~40 minutes of ground running with a smaller prop?