Yesterday, a friend gave me an old Toro 8-25 ride-on mower. It had been in his garage for 10 years, never used. He said he couldn't ever get it started. He got it from his bro-in-law who had it laying outside for a few years before that. Questions: 1) How can I tell what year this unit was produced? 2) Are manuals available for older models? 3) Where should i start in troubleshooting this machine? I'm good with taking things apart and sort-of good putting them back together. Just need a little guidance.