The 770 John Deere was built by Yanmar of Japan and is a good tough tractor. The 770 series should be a 3 cylinder hydrostatic drive unit. I have a 1981 model plain 650 which is a smaller gear type 2 cylinder 2 wheel drive and it is a very good reliable machine. Mine is very fuel stingy.
One thing let me caution you about, never use starting fluid in cranking it. The books says not to but I foolishly loaned mine out last spring to a friend and when the battery got weak he sprayed starting fluid in it. The starting fluid took the top of the first compression ring grove off and the top of the piston also.
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Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
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