Wash a motorcycle???
I don't do it as often as I should, but when I do, I use the Honda cleaning stuff that comes in an aerosol can (black with white and pink label) and a clean soft rag, a t-shirt or equivalent. Safely cleans everything metal and plastic, including windshield, and when you're finished, it really gleams. A friend who owns a Harley, of all things, turned me on to it. Takes about an hour to do it up right--I usually do it before the ride.
What's Lemon Pledge about?
When the going gets weird, the weird turn pro.