Ive got a 2001 Z 440 Sno Pro that was a prior race sled. It was retired from its racing career after the 2002 season and it won many trophies for the wall. After that it was trail converted and rode all over Minnesota. It was rode every year all season until the the end of the 2009 riding season. After the year ended it was pulled back into the garage with a full tank of 91octane gasoline and there it sits. Has not even been turned over since it was last rode. Now that it has been 3 1/2yrs since the sled has moved an inch, what all should I do to get it ready to go on a couple small/medium rides the rest of this season?