I have the Brison in a new Carden Extra 300 and has four or five flights on it. Engine runs great on the ground and when flying except when I do a vertical dive after a stall turn. The problem is when I pull out of the downline the engine will die or not respond to throttle input for 15 or 20 seconds. On one flight the engine wouldn't respond. When I landed the engine was still Idling and finally throttled up. The clunk in the tank is ok. Any thoughts on what might be causing this problem? Low end to lean or too much cowl pressure causing carb. to go rich?
Thanks
Carroll