This is one of my 'charity case' mowers. $15 at the tip - everyone else was too busy fighting over the clearly buggered Honda SP mower or the near new briggs cheapie with a bar blade that had hit something solid
Added 200ml oil, some fuel, and primed it with a screwdriver handle (small split primer) and it went first pull.
Ended up new air filter, plug, oil change, blades, sandpaper coil and flywheel, rpm adjustment and carby clean. Fills the catcher so well that the front wheels will bob off the ground at idle.
Does have a slight knock, but starts first or second go every time (good for a 1993 briggs engine) - good for doing the verge with all the little gum nuts
Have another near identical one from curbside I havent done much to yet - changed primer, added fuel and oil and went third go