Ditto on the AZ trail riders.
Also, keep fresh oil in that puppy ( every 2-4 rides depending on severity/length of ride). Check your spokes every couple rides , too. They tend to loosen on thumpers more often, probably because of weight. Lube your linkage and steering stem as needed. I do mine every time I change the front tire, and every other time I change the rear - but a 225 won't eat up rears too fast, so you might want to think about doing the rear linkage/swingarm every time you change the rear tire. That is all I got - good luck, have fun, and don't wreck too hard.:)