Thanks pogo for your reply , I have owned and serviced different tractors but this thing is a different animal to me . I have no literature on the unit and the guy that sold it to me was of mo help at all as I asked all sorts of questions and he said u will figure it out , would not even show me how to start and operate to get it loaded on my trailer . Could be I made a mistake by purchasing this in first place , did not require a large machine and looks to be in good condition . He re powered with Briggs Vanguard 20 HP about 8 years ago , seems to run good but hard to start as I have to use spray of either into air cleaner while cranking , I will install new plugs to see if that helps or maybe there is a way this thing starts or not like less choke not sure yet as just got it . My concerns as in my last thread are making sure chains are adjusted properly and lubed , I did take the slim foot panel at front off and then one behind it held by 2 bolts but that just exposed enclosed battery box and nothing else as it was all boxed in u could not see to sides where chains should be located . I do believe the machine to be a late 70 's or very early 80 's , have not found serial # , it is just 1816 no A B or C's behind 1816 . I do appreciate any help at all as I'm in the sticks here so to speak going on 70 years age and no other help at all . Thanks Doug