Solved mine - yippie!!!
After quite a lot of try and error in repeating all the logical pathways.
The trouble was all at the start.
It was a non starter and then again with true force an full open throttle a starter on 2 to 3 cylinders.
Went for fuel lines, filters, spark plugs, ignition, ..... all seemed fine.
At the end it seems to be the air intake.
Better than new excluding the filter from the system.
Ordered a new one and let's see;-)
