Leapy, they are the old 2T motors. The EU banned their sale (new) from the end of 2006 to Leisure Users. They can still be purchased by commercial fishermen and for racing use. As such they will have reduced or no warranty. They are still produced and sold worldwide.
I have no personal issues with their use (having one) and can see no sense in allowing fishermen to use them but ban some guy who puts in 30hrs a year from having a new one.
However, I suspect that importing them from outside the EU (The Channel Islands for example) for leisure use involves some "fudging" of the regulations and as such, the details might best not be discussed on here. Happy to be wrong about this - apologies in advance if appropriate