How do you change fork oil in a 2007 Honda crf450?

To change the fork oil on a 2007 Honda CRF450, start by removing the front wheel and brake caliper, then detach the fork tubes from the triple clamps. Compress the forks to release any pressure, then remove the top caps with a socket wrench. Drain the old oil by inverting the forks and allowing it to flow out, then refill with the appropriate new oil to the specified level. Reassemble the forks, ensuring the top caps are securely fastened, and reattach them to the bike.