Update. '87 260E
For all those that helped with input into my problem I thank you. It turned out to be a bad fuel injection ECU. Plugged another one in, reset the duty cycle and now I can run it all day with no smoke.
Now, here's something to ponder.
I have read so many posts with regards to hard starting hot and cold but no one seems to know the answer. Now that the car runs well and I can use it I now notice that I have the hard start problem.
?????????
Michael