Can anyone give me some background on this mower? The B&S number is 100708 0129 01 88061325. I know the numbers are telling me the engine is manufactured in 1988, but does the engine belong on the frame?

Picked it up for $40 and it goes like a dream. Blew a little white smoke but that seemed to disappear when I ran it for a little while. No visible oil leaks. I don't think the fuel cap is original, looks like something off an old petrol tin. Only visible rust is on the flap that holds the catcher on.

I was just gonna clean it up and sell it on.

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