Grumpy,
You are correct about the production line not torquing up the bolts. This has happened with the Atom engine as well. I only had one in last week where one side of the cylinder bolts were not torqued down properly which caused us major problems with the tuning (note that they now pressure test the cylinders).
The Chinese are still learning with lots of stuff and will eventually get it right providing the Companies guide them correctly.
