Hi Keredsenoj and Ganglio, the SH-2 and SH-101's CV specs match up with the beatstep so it should work.
I think the comment in the manual about the beatstep not working with some synths refers to the Hz/volt and s-trigger kind of standards Yamaha, Korg and others used.
The beatstep outputs in 1v/octave and gates at +8v according to the manual
For the sh-2, CV is in 1v/octave and gate is anything above about 7.5v
For the sh-2, CV is in 1v/octave and gate is anything above about 2.5v
Mbe check your cable, sockets etc?
Anyone else have a working cv/gate link with these synths?