I have a 1997 XT 350 that started leaking oil on the top of the engine case where the right side cover meets the main case. I bought a new gasket but I was hoping for some input before I starting taking things apart. I am mechanically inclined but I don't want to get in over my head without realizing it. Here are my questions: 1) Do I need any special tools to get the job done? 2) Is there anything I need to do before during or after this process that I should know about before I find myself wishing I had done something. 3) How hard is this gasket to change? 4) Do I have to do anything other than put the gasket in and tighten everything back up? Again, this is a 1997 Yamaha XT 350 and the gasket I am wanting to change is the one on the right hand side of the bike (the same one as the kick start, decompression thing, etc.).