Hi guys, I've got a 2008 WR250F... I've got 120 hours on it, valves haven't moved since last year's adjustment. Quick question for those who have disassembled the top end - I am wanting to do a piston/rings/valve inspection, not necessarily any parts replacements unless required. I've got a top end kit (gaskets, rings, piston, timing chain). If I follow the book and disassemble the top end, do I need any special tools to get it back together? Aside from the valve spring tool I mean. I've got all the gaskets. For example I read a lot about cutting the seats, etc, I presume this is only necessary if replacing the valves? I've disassembled many two strokes, and I can follow the book, but I just want to make sure that there are no really special tools required. Thanks guys.