Define a factory or works bike ?
To me a works bike sometimes referred to as a factory bike is the hand built exotica that existed from the mid 60s until the mid 80s .
Im sure there were earlier examples and maybe the odd later one .
Bikes and parts hand built that were unobtainium to the rank and file . These bikes were the holy grail of our sport and coveted by us all ( of course in reality how many of us would get any real benefit from one is debatable )
I will start another thread on it but to me that is a std KX with a few bits bolted on just like what they laughingly call factoery bikes today
To be fair im sure it was built in a factory , the Kawasaki heavy industry factory along with thousands of others the same