OS 50 hyper, running in?

Im running in a 50 hyper, bags of power but during the flight power tends to drop , put it on the ground then apply throttle again and all is ok, then it randomly does the same again, it dosent seem to be over heating and im still running the engine fairly rich,

any ideas why this happens, how do u cure it?

cheers in advance

Andy

[Ade_Law]

what fuel, muffler and needle settings?

Ade

[Steve]

No joy with the replacement carb on the 50SXH then?

[guest222]

Hey steve carb worked fine cheers! my other rappy has had some cash spent on it!!!! got a zimmerman on the way too! curse this hobby of ours its so addictive
!!!!!!!

[Steve]

Ain't that the truth.