Sorry sirs, but I have to disagree with most of the above negative statements !
The 2 stroke Selva - LPDFI = low pressure direct fuel injection - has been developped during maby years with a cooperation between the french ELF and italian Selva.
It doesn't use the same ideas than Tohatsu, Mercury or Evinrude with their injected motors, but another.
The intaken air is compressed into the crankcase like all the 2 strokes, but partly diverted and stored under-pressure in a small tank which is part of the crankcase, then mixed to the gasoline coming from a pressurizing pump and sent to the head through a valve controled by a camshaft.
More or less, it works like the low-pressure spray-painters.
This saves the mechanical compressor (see Tohatsu and Optimax) and it is very efficient, with MPG figures better than the best 4 strokes .
The ECU controls the operations and allows the right amount of gas to be sent.
The 80hp is very light (120kg, more or less that of a 2stroke-90 Yam, or a 50/60 Merc, or 50 Suz) and displays the 2-stroke typical high torque figure at low RPM, which makes the big difference with 4 strokes engines.
Running is very smooth, not as quite as a 4 stroke indeed, but low weight and high power/torque fit perfectly the present mid-size ribs.