It stormed so hard a few weeks ago that engine performance suffered while riding in the rain. A LOT of water was pouring into the air cleaner. My next project is to fab a rain protector for the carb. It'll be made outa a tin can with a hole in the bottom for the air cleaner stud. I'll drill a hole in the chrome air cleaner cover and install a bolt. When it's raining hard, I'll simply slip on the tin can and secure it with a wingnut.
I'll keep one tin can at work, in case it REALLY starts pouring, and one at home.