I was just wondering how to take my flywheel off my trx 2.5. Does it just unscrew or what??

go down to your local auto parts srore and get a battery terminal puller works great!

http://www.rcnitro.com/RC/articles/toughtask.asp

The artical at this web site even gives you pics

appreciate it. umm. what happens if u scratch, or tried to use some pliers on your flywheel... i saw something in that article about using a rubber hammer, but it risks scratching the flywheel... is this a main factor? because mine is a little scratched up, and the grooves around the edge are kind of messed up where i took some pliers to it...