I was having intermittent power issues which presented itself as a lack of power at high speeds for a length time around 4-5 k revs and the bike has 60,000 miles on it so looked online and decided to change the pump as a starting point (at low revs the bike was fine).
I used a new pump bought off of Ebay (not OEM) that had been advised by others on the UKGSER site, they have not had issues with theirs. When I have carried out some research I think the BMW fuel pump electronic fuse protects at 5 amps and the pump I have fitted has a maximum of 11 amps current draw stated, whilst I understand that this would point to being the issue it has been advertised as being for my model bike with a straight swap and is in use with no issues by others.
I had previously had two coils replaced but this did not cure the problem, I have now changed the remaining two coils and am looking to change the fuel pump controller next with maybe the fuel pressure regulator also.
The pump works fine on start up at idle but the bike cuts out after 30 seconds or so with the message "fuse activated for electric fuel pump" when left to run. This is apparent at a very frequent rate with the amps of the pump being recorded at 6 amp minimum and up to 7 amp (cannot upload the GS911 screenshot onto here for some reason?
The ground wire on the old pump came off the negative that was in the pump side connector and the other end connected onto a lug on the main housing side that screws into the tank.