Having stood beside Alan Davey for a number of years,and having done MH covers,learning each album as it came out...
The open bass chord seems to be a Lemmy fav...
So as an example "A"
A string open,high A on the D.
For more power (Short chord)as above but add a high E on the G string.
For the full power chord,say "E"
Est open,high E on the A string,High B on the D string and finally high E on the G string,full power
Get those three things down and you have the rhythm structure that Lemmy uses for just about every song.