I went a head and got the service manual and read through it a few times! Thank you for the advice, I'll definitely try to keep everything as organized as I can. The cam has already been pulled, my brother just left the atv in pieces. I don't remember what the problem was with it, but is has been sitting dismantled for almost a year. My dad got all the parts together so hopefully I will be able to get it all back together for him, he is a disabled Army Vet and can't do a lot of physical work like he used too. I'll definitely be asking more questions as I move forward with reassembling it.