It won't be long before haveing a Tecumseh engine in any mini bike will be really desireable. Anyone can install a clone, made by C.H. Ina, for 100 bucks from harbor Freight.
Sorta like early Ford hot-rods. Any idiot can slam a 350 small block in one [usually with a stupid 350 Turbo trans]. The really desireable machines carry an old Flat Head Ford or a Nail Head Buick or, at least, a big block.
It's sad that tec engines will be getting scarse but it's also an opportunity for those wise enough to pick up some nice ones. I'm sure going to.