I posted this in another area by mistake , reposted it here . All the mowers I have looked at are sold before I can get to them , So now I am looking at a Toro LX426 mower , owner says it "Blows blue smoke when warmed up" would that be bad rings or something else . Below are a couple of pics of it . He`s asking 450.00 for it , or all reasonable offers considered . Is this something that would be worth getting and work on during the winter without dumping a ton of money into it . Its a briggs and stratton 20 HP .