Just scoped out my air filter with one of those cheap azed Chyna remote cameras.. Probably 17K on the A/F since I last changed it. Not too bad:
(Pay no attention to the date/time stamp - it's not set and incorrect)
The reason why I scoped it was because I started it this morning after it sat for about 5 days; and it did a weird dip in idle RPMs immediately thereafter. When I goosed it, it almost died on me and the exhaust was smelling rich. I was suspecting a rat bastard built a nest on top of the air filter hence; it was choking for air. Was not the case though. Took her on a long, hard run this afternoon and blew her cobwebs out.
Life is good.