For the first time ever I had to push my trusty R1100 bike back home 
Symptoms are the following: washed the bike (which I rarely do!), started up fine for few minutes of running so it dries quicker which I sometimes do. The next day, start up allright, ride some half a kilometer and it completely died. With rev-counter did couple of wierd sharp motions before it died. No chance of starting it up again and with ignition on it makes wierd short-cirtcuit short "scratchy" sounds time-to-time in random interval that goes into injecton heads, starter and load relays under the seat if I hear closer and try to pinpoint the sounds. Certainly some electrical short circuit/bad connection sounds.
I did careful wash with some water going below the tank - lot's of connections there. It was no pressure wash, just normal wash.
When the bike's dries for a couple of days it runs flawless again.
I doubt if it's a Hall sensor (those funky ignition sounds with only ignition on, with Hall sensor one or two cyls should be dead), also I doubt the Motronic is faulty (water related issue). I reckon there's some wire worn off isolation and getting grounded with water. It looks when I moved the wires that go above the crankcase - below the alternator it didn't make wierd sounds so much. Bike's got over 255 000 km of third world roads collected up so I reckon the vibrations must have worn off some cable's isolation or connections. I cleaned and refreshed all the connectors to be sure it's not any of the connectors, Motronic connector, main connectors below the fueltank, ignition coil, sparkplugs, fuel pump array, hall sensor etc, but still the same funky sounds when it gets very wet from below the fueltank. If I just outer-wash it mildly not touching anything below tank then everything's fine. But I imagine the first deeper watercrossing will completely kill it again and can't trust riding it in a very dense rain now.
Should I strip all the cabling for visual inspection and testing (massive work!) or it's better to get a new complete s/h wiring for it?
Any similar experiences?
Symptoms are the following: washed the bike (which I rarely do!), started up fine for few minutes of running so it dries quicker which I sometimes do. The next day, start up allright, ride some half a kilometer and it completely died. With rev-counter did couple of wierd sharp motions before it died. No chance of starting it up again and with ignition on it makes wierd short-cirtcuit short "scratchy" sounds time-to-time in random interval that goes into injecton heads, starter and load relays under the seat if I hear closer and try to pinpoint the sounds. Certainly some electrical short circuit/bad connection sounds.
I did careful wash with some water going below the tank - lot's of connections there. It was no pressure wash, just normal wash.
When the bike's dries for a couple of days it runs flawless again.
I doubt if it's a Hall sensor (those funky ignition sounds with only ignition on, with Hall sensor one or two cyls should be dead), also I doubt the Motronic is faulty (water related issue). I reckon there's some wire worn off isolation and getting grounded with water. It looks when I moved the wires that go above the crankcase - below the alternator it didn't make wierd sounds so much. Bike's got over 255 000 km of third world roads collected up so I reckon the vibrations must have worn off some cable's isolation or connections. I cleaned and refreshed all the connectors to be sure it's not any of the connectors, Motronic connector, main connectors below the fueltank, ignition coil, sparkplugs, fuel pump array, hall sensor etc, but still the same funky sounds when it gets very wet from below the fueltank. If I just outer-wash it mildly not touching anything below tank then everything's fine. But I imagine the first deeper watercrossing will completely kill it again and can't trust riding it in a very dense rain now.
Should I strip all the cabling for visual inspection and testing (massive work!) or it's better to get a new complete s/h wiring for it?
Any similar experiences?
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