You always can recognize the place where the engine designer did located the position for a pressure tap, if there is not such a location visible I only can advice make the tap in the screw of the crankcase back plate.

These visible locations are special designed because they left away all the material to safe weight.
Even in the past the back plate screws were often used to make a tap.
Third position for me would be in one of the two bearers between the mounting holes!

I did make a picture of the OS Max 61 FX, right side, the engine were we are talking about I thought, the other is an MVVS 10 CCM, both modern engines.

Cees