Just an idea
For you preppers. My friend is kind of a hoarder, but he does something extremely cool. He pilfers junk yards and gets all types of lawnmower, weedwacker, etc engines and fixes them. I've seen him fix 2 kerosene heaters for under 25 dollars worth of parts, and they work like new. Great learning experience, and you can do a lot with old generators and alternators.
"If you remember nothing else about what Iím about to consider here, remember this: the one and only reason politicians, bureaucrats, and policemen want to take your weapons away from you is so that they can do things to you that they couldnít do if you still had your weapons."ó L. Neil Smith