2004 John Deer Buck Utility ATV 500, 500EX and 500EXT Service Manual, Page 116Get this manual
If weight lining thickness is out of specification, replace the clutch weight assemblyWeight Spring: Measure length of weight springsIf they are longer than 21.6 mm (0.85 in, change the clutch weight assembly P0008443
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Check weight springs for wear or other damageReplace the clutch weight assembly if necessary
Remove: engine oil and coolant rewind starter clutch cover front output shaft