hey all.

took the extra out for a flight yesterday as it was such a nice day,[8D] got everything set up, the first flight was great, nothing major just a few rolls, loops as this is only my second plane so being steady with it, anyway filled up for the second flight, started the engine, it idled then cut out, this went on for about 5 attemps, eventually got it running, got ready to take off and it lost power going down the runway, it took us another 5 or so attemps to get to go, adjusting the needle etc. anyway eventuall got it in the air only for it to go dead stick after about 2 mins. the engine is an os .61 and its only had about 7 flights on it since it was new, it was fine up untill last week when it did the same thing, the first flight is fine then it plays up. any ideas? maybe its overheating? as its fully cowelled but there is plenty cut away round the head and exhaust, tried a new plug, checked the pipes etc. dont fancy another dead stick landing.[]