hey guys- still learning engine stuff so bear with me. my carb has been pretty slow on my 22r and it is really dirty. i need some help/advice on the best way to go about this. does anyone have any good step by step instructions? i got the air filter off, air filter housing as well. i see 4? nuts that look like they hold the carb down. well two of these came off fine, but the other two, im just spinning the stud. i used liquid wrench, but still doesnt seem to do anything. so any help on this would be awesome. thanks in advance guys.