I was reading in this thread here that the D an Y motors are in fact a little different. That the D wind tends to work well in either rotation direction and the Y wind motors work better in one rotation directn vs the other.
http://www.rc-monster.com/forum/showthread.php?t=7277
Could it possibly be that the Y wind you have is spinning the "wrong" way?
Maybee I read this wrong or just didnt understand what I was reading....
EDIT:
I think that might be the wrong thread... But I do remember reading that around here recently. Not sure exactly where now. Anyone know anything about this or.... I could just be talking out of my ass.:002: