is a crf230 competitive in the dezert well for a first time racer?
First time racer and thats the bike you own, go for it. As the others said its not gonna be competitive with the front runners but you will still have a blast and get your feet wet racing until you are ready to move up.
Yeah, you can race it. I think they even have classes for that bike size/type in some series.
There is a lot of good info here on how to trick it out.