Greetings, We rescued a GT5000 after it had sat for years. We replaced the fuel pump and Carburetor and all the fuel lines, it had a black tar like substance thru out and black chucks of stuff in the fuel tank. It was running great and everything else check out fine. The other day I went out to the shop and tried to start it and the battery was dead so I charged it and it started and runs great. I noticed the mower deck switch had been left on so pushed it off. Now when I engage the deck the engine quits. Any ideas? safety switch, deck solenoid? Other than that everything work fine.:tongue: