2004 John Deer Buck Utility ATV 500, 500EX and 500EXT Service Manual, Page 73Get this manual
Periodically inspect air filter box drain tube no9 for liquid or deposits Remove seatRelease clamps and remove air filter box cover no1Loosen clamp and remove air filter no3V04C16A
V04c16a3.EPS
If liquiddeposits are found, squeeze and remove the clampPull drain tube no9 out and empty itV01F1LA