Preventative maintenance for the win. Just bought a 90s DeaDoo, noticed it had the original grey fuel lines. I know that those lines are notorious for breaking down and plugging fuel filters, thus killing engines. However, this SeaDoo ran perfectly as-is. I was too paranoid to just run it like that so I took it apart and sure enough, the fuel filter was all plugged up - probably would have killed the engine if I hadn’t checked and just kept running it