So the guy at Home Depot talked me out of liquid electrical tape, which he apparently uses all the time for electrical work. He wasn't too confident about recommending anything else, but thought I should give Gorilla Glue Gel (not your grandfather's Gorilla Glue) a shot. I've already applied it and now I am waiting for it to dry. I don't know when I will get back on the bike again (busy season at work) but I will report back then.