When looking for and engine for a bicycle many shop ebay for great deals. One can find bicycle engines for as cheap as $150. What isn't known is most of these cheap engines are just that cheap junk with no warranty, no support, no replacement parts. When thinking about a 2-stroke engine many don't consider that most of these run a mix ratio of 20:1 or 25:1 this amounts to adding 6oz+- of oil to the gas making the cost per gallon nearly double. I don't recommend buying one of these cheap engines on ebay. Buy a 4-stroke from a dealer that actually has a web site. 4-strokes give greater fuel efficiency, fill up at any gas station, no premixing, longer engine life.



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