2004 John Deer Buck Utility ATV 500, 500EX and 500EXT Service Manual, Page 45Get this manual

2004 John Deer Buck Utility ATV 500, 500EX and 500EXT Service Manual, Page 45

Note the amount of leaking or percentage (depending on tester) Leakage percentage to to 15 16 to 30 Engine condition Excellent condition Fair condition; proceed with tuned up or adjustment Poor condition; engine will run and performance might be down in some cases Very poor condition; diagnose and repair engine
30 and higher

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