Picked up a Sun engine analyzer for free from an auto shop that bought a new one. Posted it for sale or trade on craigslist & wound up trading it fot 3 lawn tractor engines. One was a 20 hp Kohler Magnum, complete except for a muffler. Sold it for $400 & used the money to buy some parts & another lawn tractor. Also got a Briggs 14hp & 18 hp opposed twins. Both are complete, but the 18 needs a starter.