MTD Yard Machines 21-inch Lawn Mower

This MTD Yard Machines 21-inch lawn mower 4.0 HP Briggs & Stratton Quattro engine, was working fine for years, but all of sudden not working, it won't start after few pulls. Feels like the brake cable is seized, but no time to play around so bought another one, It comes with grass collection bag also selling it as is, looking for $70