I am having one hell of a time with this 160FX. I know it's a muffler pressure problem, but I hate having to screw with it.

Went out today and flew a few times. A couple minutes into the third or so flight, the engine started knocking and it wouldn't rev.... crap.... overheating.

We brought it in, and, once again, tried to mess with the high end. It had no affect. We could turn it out until it came all the way out and it did nothing.

We even BYPASSED the high end screw all together. Still nothing. Then we plugged one port on the Slimline and with the bypass still there, it would actually run rich. WHATEVER.

I'm off to order a pressure fitting for it so I can run a pump.

UGHHHH!

Mike

PS On the other side of the coin, the plane flies very well, albeit with a tendancy to snap with too much or too quick of an elevator input.