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I have used shout more often. Have entered several bike shows and placed very well. I also feel so good about the undercarriage that I place mirrors under the bike to show it off. You can also us Mothers Back to black to make it look a little better. For more info PM me...
I soak everything with wither Simple Green or Greased Lightening Garage Spray. The I flush all off with a stream of running water. I usually do this at each service interval.
My nephew works at a MC shop in FL and he pointed me to some amazing stuff called Motowash made by Motul. The stuff is golden! (both in price and in results.) Between washes the Wash and Wax is great for everything from the windshield to the tires.
I use engine degreaser. It probably kills brain cells every time you use it, but it gets that grease off fast from nasty areas of the bike, like the underside.