fuel pump controller wiring colours for bypass

still confused with the blue and yellow wires from fuel pump controller to the fuel pump,wich one is positive,and wich one is negative?i am touring europe in three weeks on my 2005 gs1200,and want to make up a bypass lead from the battery [fused]incase of a problem.anyone please clarify.

Have a look here


http://www.ukgser.com/forums/showthread.php?t=143272&highlight=fuel+pump+bypass

still confused

thanks for the info.but i have looked at these threads,and some say the blue is positive,and some say it is negative.and i do not have a tester to find out.please can someone help

Hi Garl,

There has been some confusion, however 'Wapping' has now provided confirmation. See the 'post' below :- Blue is +ve.
Hope this helps.
John
................................................
Wapping
Subscriber





Join Date: Oct 2005
Location: Wapping, London
Posts: 14,726 I'm getting a couple of questions about which wire is positive.

I have checked again and it's the blue one.

Other people have commented that their socket has a blue wire and a yellow wire, like the one wires in Tim's picture. That may very well be true. The plug I had from Robin of this parish had a blue wire and a white wire. Or maybe it was just badly faded yellow? Or, as Tim said, maybe BuMW just changed the colour.

Either way it doesn't matter, blue is hot.

blue is hot

cheers diver1,all the best

Check out...
BMW R1200 R1200GS Fuel Pump Controller Bypass





........and the neatest bypass I ever saw!

Garl - you might be better off buying a spare FPC (about £70) and carrying it on the bike. If the old one goes, its very easy to fit the new one. The bypass is not an ideal solution, esp on a long trip. If you sell the bike and still have the spare FPC, there will be plenty on this forum who will offer you a good price!