When I bought my 2008 M8 it was a non current without paperwork. I called Arctic Cat and they sent me a new operators manual at no charge. They were great!
I've got the 2007 Arctic Cat Snowmobile Service Manual electronically. Don't remember where I found it but it's good info on all AC sleds, not specific to M's though.
PM me your email adderss and I'll send it to you. I think it's too big to post on here, usless someone know's something I don't.