I'm having great results with this engine, it's the newer "Rossi" based XS 200 type, not the Picco ( crap ) .

Anybody else using one?

how can you tell what version of the engine you have.
i have one of these engines and i am having problems getting the idle/bottom end dialled in.

mine looks like this one

would you know what are the manufactors needle settings.

thanks
mark