I did the valve adjustment and all were very tight. I suspected they had not been done for some time. (180,000m) So, After I do the adjustment the 300sd is hard to start and seems to be smoking much more.

The adjustment did make it run a little better, especially on take off. Is there a reason it is harder to start, before it would take half a crank and start now 2 to 4 cranks to get to start. What about the SMOKE??