I have a Fuji 32-A I bought a bout a year ago but I have only begun to use it in the last month. I having a ball with it in my 77" Sukhoi but I am having a strange problem with it. On the ground it runs super as it does in level flight, however, when I perform a knife-edge in either side or flip over inverted the engine loses about half of it's rpm. I have made sure everything is tight and secure so I am sure there is nothing moving around. Any ideas at all? I have approximately 2.5 gallons through it. Another thing I have noticed is that when I first start the engine up it runs great but when I finish my flight the low end seems to be lean. Reading the manual it says I need to adjust the high end needle for this symptom and not to touch the low end needle. When I adjust the high end needle when the low end seems to be lean and I go for another flight, it seems good. Could the engine be at the point of breaking in?

Thanks,

Chuck

Maybe instead of adjusting the high end needle only, try adjusting the low end because the low end seems to "talk" to the high end. You might try to richen up the low end a little and see how it flies because as you stated it does it whenever the nose is pointed up which to me sounds like it is going lean. Also check the fuel system if that doesn't help. Maybe if you haven't already done so replace the fuel lines, filter, clunk, etc.

Well that's all I can think of at the moment.

Extra

Richen the low-speed needle a bit and see what happens. The two needles do interact a little bit, so changes with one can affect the other.