well the thermo switch tests out ok according to the manual. however they only have to test resistance and I have seen sensors test fine like that but still not work so who knows. I am going to test compression tomorrow which I need to do anyway to determine engine condition. If I get time I might pull apart the intake a clean it.
Like I said I dont think cleaning it will do anything with the starting problem. It will however give you a lot more power. It did for me.