Bmw 1200 gs allternator sending out 15.8 when loaded

Find the broken wire and replace it. You have identified the problem, fix it yourself or take it to a mechanic to have them fix it.

With modern spark plugs and unleaded fuel you can easily change them only every 50 000 miles

BMW R 1200 GS Adventure available here
http://repairbooks.co.uk/bmwr1200gsadventure/index.htm

Also other BMW R 1200 GS Adventure downloads

chegk out "R1200GS.info" tell's you everything

I have been told by my dealer that the 2005 GS fuel gauge reads full until it the tank becomes 1/2 full then it drops to 1/2. I have had a similar problem to yours but it cleared itself. I keep an eye on my miles riden per tank as BMW will not admit it has a sending unit that is not up to par.

Bonzaii

Should be under the seat ... find the two bolts that typically hold the back of the seat down .. remove them to find the battery box.

Alternatively, you could check in your owners manual or if you dont have one ... you might look at the manufacturers web site or www.archive.org.

Lastly, you could stop by the motorcycle shop parts department and mane a friend of the counterman. They know everything ... and are generally willing to talk.

Your ABS pump is faulty.

Contact these guys: motorcycle repair

They repair the ABS units with a 5 year warranty.