here is a chainsaw conversion i started today. i got it real cheap at a junk store. we started it up and it runs really well. the model was FR4618 and mcculloch has a history of naming them the displacement and the bar length. this one has an 18" bar so i think its a 46cc engine. both carb and mag were on the engine so conversion should be easy.

can anyone confirm what size this is. the picture shows it with a ryobi 31cc also. im going to make a better muffler and also mill the flywheel.