r100gs stalling in monsoons

[01bmw]

I have a 1990 r100gs in cambodia that stalls in the extreme rain and knee deep puddles. I think it is my plug wires but not sure. in super cambodian (south east asian) rain and riding in flooded areas, (anything just above the jugs), the bike slowly stalls. an hour later, with as it dries, it starts up fine. I am guessing it's the plug wires. any ideas?

[YB in IN]

Congratulations on what has to be the first post from Cambodia. I'd guess that it's the plug wires as well, or another possibility is that it could be a cracked ignition coil. I had a similiar problem in plain old Indiana rain that turned out to be a cracked ignition coil.

[GSTom]

I had a similar problem on a trip last spring. We were riding in some pretty severe rain and one cylinder kept misfiring. I had never had this happen before. When the rain let up, after 10 minutes or so the dead cylinder would begin firing again. We limped into Cape Girardeau, Missouri to Grassroots BMW (A great shop BTW). The owner, who also has a GS immediately suspected the coil, but upon examination he determined that I had the "new" style coil. Replacing the plug wires solved the problem and I rode trouble free the rest of the weekend in spite of some more severe rain.