Took delivery on the Jin Dong 1115. As advertised it is a brand new engine that has never been fired; mine has a date of manufacture in 2010. Filled with fluids and attempted to start -- fuel pump didn't work initially but after a couple of hours sitting with diesel in the system it started working. At initial start up it was showing symptoms of air in the fuel supply lines (white smoke misfiring)and I started with the line from the tank to the filter to the pump , etc bleeding out the air. Still white smoke, etc.
Getting frustrated at this point I started rechecking the tightness of every fitting from the fuel tank to the injector and found that the studs that hold the injector in place on the head were slightly loose -- turned each nut about half a turn and voila the engine fired right up and ran normally.
Seems like a nice runner, runs out smooth at 1800 rpm. Comes with usual accessory kit (rings, bearings, seals & valve springs plus usual crummy tools)
The manual is a hoot -- as a senior citizen myself I took particular attention to the following on page 2:
"Children, the slow old man and epileptics are not permitted to enter the workshop."
In any event seems like an excellent deal at $799 delivered, YMMV.