best stuff I ever used was some stuff called "white lightening" from padre janitorial, comes in a 1 gallon bottle (expensive but you dilute it and it lasts forever) dilute it to about 25~30% strength in a spray bottle, spray the bike down good, let it sit 5~10 minutes, than hit it with a garden hose. no rubbing, no scrubbing.
lemon fresh pledge furniture polish on the plastic.
for all around after you get it cleaned up good with the power washer/ pressure washer.. go to your local auto parts store.. pick up a good wash wax combo from there.. yaknow.. like shampoo conditionerin one.. same thing with car wash soaps... other wise.. there is good ol cheery power car wash smells soooooooooooo good
another trick, never armorall the tires, it's a lubricant and will make it much easier to puncture them