Thanks for the update. I will give the Maxima SC1 a try. I did get a good recommendation for the seat from the Harley Dealership. See link Seat, Saddlebag & Trim Cleaner - 93600010 | Harley-Davidson USAMaxima SC1 was recommended to me and I love it for the painted surfaces. I'm hoping someone has a good recommendation for the seats. As for tires, I've always read a stiff bristle brush and water is all you should use because you don't want to compromise traction.
I'm not a detail expert yet but I use a pressure washer, then the two bucket method wash (Google will explain it better than I can), and finish with the SC1.
I 100% agree with this and I do believe it's mentioned in the owner's manual, if not elsewhere....
But I'm not a fan of pressure washers on bikes. I don't like how they force water into fittings, bearings, and connectors.