The dealer only had it for 2 months, Honda had it the rest of the time. Its not uncommon for honda to have an engine in their warehouse for a couple years, especially in the early days they would have one that would get the box it came in damaged or the motor scratch during shipping and they really didnt have a good system dealing with those motors and they would just pile up in the warehouse. It also probably wasn't a very popular model, 160lb 20hp, the current honda 20hp if you get the pull start is under 100lbs electric start just over 100 lbs.