heli was set up several months ago by Andy at aero Hobbies in Lewisville Tx. Gyro is a futaba 240. I've never had it out ou HH.
I had a servo go out. Figured it was a good time for some pm and tuning. Replace servo, balance blades, adj linkage rod to tail. I've never gunned the throttle before. When I did, the heli would rotate about 45 degrees before hh locked tail in place.
Barracudahockey advised me some time ago to dump the tt36 and get the os37. Excellent advice. I like that engine. Since breaking in engine, there has been very little carb adj needed. Try that with a tt engine.