Hi guys,
I have a B&S Quantum engine that i just service, drained the oil, replaced the plug, filled with new, started and run fine, then conked out with a bit of smoke. Noticed no oil. Look under to find missing drain plug, one of those plugs with the 3/4" socket connector.
I remember tightening it up, but i guess it came loose. Is this normal? should I be using locktite or is that stuff no good around oil/fuel? In the past, never had an issue with it coming loose and making its escape

.
Also, any tips on how to fix small cracks in a plastic fuel tank? Even though they're closer to the top of the fill line, and I fill below them, somehow they still leak fuel

. Perhaps fill in the cracks with epoxy, or superglue ??