Here is a used OS 240 twin. It has been sitting around for a couple of years. I has a custom mount, custom exhaust pipes. Two things, first has been repaired at the back of the engine. ( can bee seen in the picture ) and it will need a low end needle valve. I think that one from the 300 twin may work. This engine may run, or could be used for parts. Sold as is. I'm asking $200 I'll pay shipping and pay pal fees. I will except reasonable offers. Thanks for looking.