So I was driving home on the interstate last night, going about 65 m.p.h., when the engine suddenly lost power with no throttle response. I depressed the clutch and pumped the gas--no response. Slowing down, I down-shifted to third, but I was still traveling a little faster for third than I should, and as the engine started to rev up as I was letting out the clutch, I pushed it back in again and put it back into fourth. Surprise! Power was back and the rest of the trip was normal.
I have no idea what caused this--speck of crud in the carbureator, electrical? Any ideas?