Mower engine help...

[Stewie]

I have the opportunity to buy a lawn tractor with a Briggs 21 hp engine. The current owner has had the mower in storage for over a year. When he fired it up a couple of weeks ago it blew white smoke for a while.


He took it to a small engine shop and they said they've seen the same thing quite often and it's usually a fuel problem, possibly a carb problem. He put new fuel with sea foam additive and started it up. It's been sitting for a week to see if that will cure the problem.



Is this an expensive fix if the engine needs work? It's a really nice mower for the price, but I don't want to inherit a problem.