First thing you need is a Clymers manual. Concentrate on maintenance for now. How's your chain/sprockets, suspension pivots, brakes?
http://motors.shop.ebay.com/i.html?_nkw=banshee+GRAPHICS&_sacat=43962&_dmpt=Motors_ATV_Parts_Accessories&_odkw=banshee&_osacat=43962&bkBtn=&_trksid=p4506.m270.l1313 some are economical. I wouldn't cut the fenders off, if you ride mud they help keep you and quad cleaner. There actually some that want them, maybe sell/ trade them. Or by some cut and have both. Clean it real good, Do a little detailing, paint wheel and sprocket/brake hubs a contrast/complimenting color. Get a cheap set of pipes and BBQ paint, biggest bang for the buck. X-2 on timing mod, $20 for flywheel puller and small rat tail file. ONLY use proper puller for flywheel !!!!! Better air filter and remove box lid. BE SURE TO REJET for ANY mods that increase air flow in or out of motor.
Be safe and enjoy