2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 83Get this manual
MAINTENANCE Remove the transmission oil filler cap
TRANSMISSION OIL FILLER CAP Remove the transmission oil drain bolt and sealing washer, and drain the transmission oil
TRANSMISSION OIL DRAIN BOLT Apply engine oil to the drain bolt threadsInstall the transmission oil drain bolt with new sealing washer and tighten itTORQUE: 22 (2.2 kgf m, 16 Ibfft)