fasterwheels Posted March 28, 2007 Share Posted March 28, 2007 Hi, not a frequent poster but got a wicked pissa' of a problem here on my 2001 R1100S. For the last 3 or more years I've owned the bike now (got it with only ~9k on the ticker) she has run as solid and reliable as a stone as long as I keep oil in her, and fresh rubber on her; she just LOVES to run! However, recently now I keep blowing the #4 fuse on the left side fuse box which is, apparently, the "fuel pump, and Motronic" fuse. I have been trying to cover all my bases and fitted a new fuel pump, filter, recent 36k service w/oil, filter, gearbox, final drive fluids all changed, new generator belt; the whole nine yards. This fuse CONTINUES to blow. It is one of the 2 15amp fuses on that side. The other controlling some lights and horn I believe. There was just another bike like mine in the shop with a strikingly similar problem and was shown to have bad relays (among other things in rear-end wiring) so I also tried replacing all 4 mini-relays on the bike to (including of course BOTH the Motronic relay and the fuel pump relay). In testing today, I just blew the fuse AGAIN (twice) while riding test-laps around Garden of the Gods. Seems to be no real pattern in the way it blows. Whether in lower RPM's pulling around and past slower traffic, cruising @ ~3kRPM through town or a back road, I can't put my finger on what in heaven's name could be doing this. Given the new fuel pump, it would lead me to believe there is something wrong with the way my Motronic is working, or a wire somewhere in-between. I am at a terrible loss here as to how to go about fixing this. Has anyone else seen anything like this? My bike is in such great shape and running so beautifully that this just tears at me every waking moment of the day lately. Any advice, insight, or experience would be MUCH appreciated, especially in leu of an $800 Motronic unit. Trouble-shooting the bike is obviously a better option, but right now I am at the end of my wick. Thanks in advance for ANY and ALL support here! Aaaargh...! --Jim Link to comment
This topic is now archived and is closed to further replies.