Johnson VRO 150 identification help needed

Now I'm just lost. I've been told to ditch the self mixing and just premix. For all I know it might of already been done. I'll post some motor pics when
I get the boat home and maybe y'all can tell me what I got going on.

[tsubaki]

The likely hood is there to be able to use a VRO pump for the fuel pump only and premix and disconnect sensors to be able to do so.