Engine Hiccups ??

[RobC68]

Ive been flying my T-rex for a few months now and today I experienced a
moment where my engine sounded like it went to idle and back up to speed immediately. It did this three times. Is this what they call a hiccup? I'm flying a hyper and an OS bubbleless clunk and my gov. is a multigov.
I only roll a couple of times each time I fly. So will a bubble in the fuel line cause this or is it a tuning issue?
The Multigov manual says that if you are getting hiccups, they say to try to lean out low end. But I did'nt know what a hiccup was.
Thanks, Rob
:arggg:

[mccrind]

Almost sounds like fail safe. Are you spectrum or pcm? is your failsafe set to idle? or was it after a flip where the govenor pulls the throttle back to regulate headspeed?

[RobC68]

I'm running JR 8103
I am running Throttle in failsafe all other channels in hold
It has'nt directly happened after a roll but it may be happening when the rotor unloads
If it ever stops raining I'm going to fly without gov. to see if that cures it. If so then it must be the transition between low and high. Do you agree?

[mccrind]

I do agree, my TJ pro used to pull the power down to idle on some moves that include a rapid decent like an auto then the head overspeeds by itself. I think you can cure this by re-initializing your gov with different high trim position. I don't know about the multigov, never set one.