How to interrogate the VFR800F's (or X's) ECU for OBD

Hello,

I'm trying to connect to my (eighth generation) VFR800F's ECU, but it's K-Line doesn't seem to "speak" either of the three protocols typical of K-Line- equipped ECU's (not ISO 9141-2, nor ISO 14230-4, be it slow nor fast initialisation). However, I cannot think it wouldn't be possible to interrogate the ECU's On Board Diagnostics by any tool, and that anyone in here wouldn't have done this already...

I have an ELM-like bluetooth OBD dongle (of wgsoft.de), I might need another one though...

So my question : does anyone know how to connect to my 8th gen's ECU (initialisation, protocol, PID's, ..., ...) ?