I have a model II with one of the few KFM 112 engines flying in the USA. This engine was offered as one of three options from the factory in 1992. The options were the 582, 912 and the KFM 112. In the event you are unfamiliar with the engine it is an air cooled 4 cylinder boxer and produces 62 hp. The engine weight is 135lbs installed wet. Its a very smooth running engine and performs pretty well. I live in East Idaho and fly out of a 5,000ft stip. I am a heavy guy 6' tall and come in at 285. The plane climbs at about 500ft mimute and burns slightly less than 3 gal per hour. I burn 100LL but the engine will burn mo gas too.