2001-2005 Honda TRX250EX Sportrax TRX250EX Factory Service Manual, Page 49Get this manual
MAINTENANCE Install the check bolt with new sealing washer and tighten it [0 the specified torqueTOROUE: 12 'm (1.2 kgfmIbf.ft)
Coat new O-ring with grease and install it into final gear case oil cap grooveInstall the oil cap and tighten it to the specified torqueTORQUE: 12 N'm (1.2 kgfmIbUt!
OIL CHANGE
Place the vehicle on level surfaceRemove the final gear case oil cap and the case drain-bolt to drain the oilWhen the oil is completely drained, install the final gear case drain bolt with new sealing washerTighten the case drain-bolt to the specified torqueTORQUE12 N'm (1.2 kgfmIb'ft) Fill the final gear case with the recommended oil (see previous page)