[Longjack]

Thanks for what looks to be some great advice. And sorry in advance for the below multiple questions.
Can accomplish most of the suggestions, short of finding a new air filter here. Is there a way I could try and clean existing one until I can get a replacement from the States?
Am using your recommended plug.
Any special oil on oil change?
As to adjustment screws....which is which as I think I see 2.
Many thanks again.