Welcom to the site man! Enjoy the endless knowledge you'll recieve from BHQ!
Id go to your local dollar store, or cheap-o-mart and get yourself a few soft and hard toothbrushes, and a can or two of carb cleaner if you want those puppies to sparkle. And yes, remove them from the bike if you can/want. itll just make the job easier since your probably going to have to rejet anyway. I do agree that 35's are far too big for just a stock trails bike. What are the rest of your mods?
Ditch the boost bottle for a stock crossover tube..
For transmission fluid, if you have a local honda shop, their Honda Pro trans oili have found is cheap, and can take the abuse from a handful of rides before it needs to be changed. I switched from Bel*Ray Gear Saver oils, to this(honda pro), because of the serious price difference. if your going to be changing it regularly (for trail riding, every 4-6 rides) its not worth spending 15 a quart on oil when the honda pro is $5. For premix, ive been using Klotz Supertechniplate. Midlife is right though, its a touchy subject. Many people willl be siding with their preference. I find that supertechniplate just burn VERY clean, and smells great as its burning. you can buy a gallon of it from rmatv(rockymountainatv.com) - to which one of our fellow member is a trusted dealer for them, his name is alf44. hit him up he can get you some deals on parts. As far as coolant, prestone works just fine.
If you need some stock carbs(26mm), i have some for sale/trade if you need em!