There was just today on Fleabay a Stihl 4-Mix starting at 99 cents (plus over $15 to ship) that no one bid on and it was relisted. But, the coil, carb, flwheel, and everything else had been removed and were listed in separate auctions. The seller said he couldn't get to run so it was parted out and the components listed separatly. The seller would not combine shipping!! I did not bid on it, and won't, although I am interested in the 4-Mix engine and would like to know more about RC conversions of it.