Recent content by FireFeliks

That double jump on the lower valve is a classic sign of a sticking valve or a worn cam lobe. Given the sudden power loss, I'd bet on a valve not sealing. Check your lash and look for carbon buildup. This guide explains how valve issues cause power loss...

Oof. $875 is a bargain with bent spindles, a missing deck chunk, and a blown head gasket. You're basically resurrecting a 12-year-old mower. Hope she appreciates it.