Back in the early 70's when my bike was still fairly new, I would take it to the (then) 25c, do-it-yourself car wash and give it a good squirt. There were 2 things wrong with doing this: The wheels rusted on the inside when water got past the spokes, and the minerals in the water would plate out on my coil wires causing no end of ignition problems. Sooooooo, I stopped washing the bike. One day, the UPS guy came by to deliver a package, pointed to my bike and said "gotta say, that is the filthiest 750 I ever seen". I think I was proud then but I keep it clean now that it's restored. I do blow it dry straight-away though to minimize problems.