Ignoramus8808 wrote:
I bought a Wacker concrete saw for $50. The seller honestly disclosed
that it ran fine, but now it "would not start", which is true -- it
does not start. How do I fix this thing, is that a carb issue?

If it's 2-cycle, then the problem is very likely the carb. Re-build
kits are less than $20. Walbro is the dominant carb maker. Service
manuals at http://wem.walbro.com/distributors/servicemanuals/

Bob