I know people have said not to, but I was short on time and the bike was really dirty. I went to the self serve car wash. It worked great , but later when I went for a ride, the oil light came on, I checked the sight and it looked like it was pumping ok, turns out the wire for the sensor was all wet(the rubber cover deteriorated quickly and lets water in) I dried it up, put some dielectric grease on and all has been well since. I guess what I am trying to say is, the more water you put on, the more chance of finding a weak link, although, on the bright side, better to find that now than when in a rainstorm.jeff