Hummm ,not many replies to a really good question, but I've been through quite alot of water . not deep but over the running boards, 1st thing i did after taking the bike to it's new home , was die electric grease everything that had a connection or a wire going to it!!, Also after every wash , i'm steady on the Krown rust protection , in all weep holes in the frame and all Ground connections, maybe overkill , but just my process !! .. HOPE to hear from some Honda Techs ....