2000-2003 Honda TRX350 Rancher factory service manual, Page 59Get this manual
MAINTENANCE OIL CHANGE Pour the engine oil after replacing the oil filter (See below)Change the oil with the engine warm to assure complete and rapid drainingStart the engine and let it idle for few minutesStop the engine and remove the oil filler capRemove the drain bolt and drain the engine oilAfter the oil has drained, install the drain bolt with new sealing washerTORQUE: 25 Nm (2.5 kgfm18 lbfft) Pour the recommended oil (page 3-10) into the engine to the upper level mark on the dipstickOIL CAPACITY: 2.0 (2.1 US qt1.8 Imp qt) at drainingfilter change 2.5 (2.6 US qt2.2 Imp qt) at disassembly Install the oil filler capCheck the oil level (page 3-10)After replacing, make sure there are no oil leaksFILLER CAP DRAIN BOLT