1993-2000 Honda TRX300EX Service Manual, Page 48Get this manual
Maintenance Check that the O-rings are in good condition, and replace them if necessaryInstall the crankshaft hole cap and timing hole capTorque: Crankshaft hole cap: 15 Nm (1.5 kg -m, 11 Ib-ft) Timing hole cap: 10 Nm (1.0 kg-m, Ib-ft) Install the following:Fuel tank (page 2-10)Seatrear fender (page 2-3)
(1O-RINGS
(3) TIMING HOLE CAP
(2) CRANKSHAFT HOLE CAP
Engine Oil Filter
Replacement
CAUTIONUsed engine oil may cause skin cancer if repeatedly left in contact with the skin for prolonged periodsAlthough this is unlikely unless you handle used oil on daily basis, it is still advisable to thoroughly wash your hands with soap and water as soon as possible after handling used oilKEEP OUT OF REACH OF CHILDREN(1) BOLTS