hey please help or give me a link to explain or video how to adjust my chain on my 2000 honda 400 ex i don't have any special tools for this job do i need some? reason i'm asking this is because, when i'm riding i heard my chain hitting my skid plate. please if you know how to do this please let me know. i have look at my back alxe and it just has some holes in the chain adjuster for a special tool i'm guessing it's a spanner wrench...or can you do this without this tool...thx