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Re: Electrical cut-out R1100RS tipped to left

I'm not sure on this, butt !! The 1200 series has a tip over switch that will do what you say if you dump the bike. What if your bike has one, and it's somehow out of position so it thinks you're leaning **way** over to the left and so cuts off the electrics for safety. Perhaps one of the experts could comment on possible tip over switch faults.

Bob Hadden

On Apr 20, 2008, at 3:35 PM, John Merlinw Williams wrote:


First I would like to thank all of the regulars on this list who have
been so helpful. A couple of years ago I had stretched head studs on
the right cylinder that was causing an oil weep and you all helped me
sort it (new studs and the correct torquing procedure). Although I
don't contribute much, I appreciate the dialog and I've learned a
lot. So here I am with hat in hand again. I think this could be

Here's my new challenge. When my 1999 R1100RS (32K miles) is tipped
even a few degrees (less than 10) to the left, the electrics cut out
completely. Tip it up straight and the electric's come back on -
lights, idiot lights, ABS flashing correctly etc. - although the
engine shuts off. I thought it might be a fuel problem but my test
case is: key in "on" position, no ignition. Tip to the left -
everything goes dark, tip it upright, everything comes back on. I
touch nothing in the meantime. It's not intermittent - does it every

Background: Last fall I smelled a hot electrical odor. The the engine
ran erratically - and got worse the warmer the engine got. Because of
the intermittent but severe nature of the "cut-out-rough-running-
stutter", then normal running for a minute or two, then repeat, in a
very erratic pattern, I suspected the crank-position sensor (Hall-
effect sensor?), but I have no diagnostic tools, so this time sent it
to the dealer. They confirmed the sensor was burned and some wires
melted. They replaced the sensor and the wiring.  I also remember,
one of the symptoms before the sensors were replaced was the bike
often cut out briefly tipping into a left-hander. Not pleasant.  I
had them synch the throttle bodies also. The bike got back so late in
the winter I never had a chance to test it on the road.

I just put on dual horns and steel brake lines, a new Optima battery,
and ran it through the pre-season check, let it idle on the center
stand. it sounded really sweet. As soon as I pushed off it died. It
took me a while to to figure out that it was going to die every time
it was tipped slightly to the left.


John Merlin Williams