Hey dude, give yourself a chance. Besides, you asked about it, rather than tearing it off and breaking it open with a hammer...
Lay it out on a towel while you take it apart, and arrange the little parts on the towel so you can remember where they go. Take every last screw, nut and bolt you can find off (arranging them on the towel), pull it apart and look for more screws you can remove.
Once you get it completely apart, spray everything with carb cleaner but the screws (unless you just want to), keeping it all arranged on the towel. Look for any little holes you can find, spray them, too. Usually when you spray into one of the holes, carb cleaner should be coming out of another hole somewhere.
One or two of those big fat screws you removed have a hole through them. Spray those pretty good, and try to look through them. If the holes aren't nice and smooth (nice circle vision), keep spraying them, and you might try poking something soft thru them, like maybe a hair brush bristle. Don't force it, use a light touch... Then spray it again .
If you kept everything arranged nice and neatly on the towel, you shouldn't have any problem putting it back together. Remember, these are small parts, and they aren't bearing any of your weight, so tighten them up with your fingertips, not your fist. Not too tight, just nice and snug.
Put it back together, put it back on the bike (remember, nice and snug, not too tight). Hopefully that will fix it.
If not, go on to the next thing, confident you've eliminated at least one possibility. Keep asking questions. You will fix it, if you really want to...
Once you figure it out, you'll have a feeling of satisfaction you can't get anywhere else (even sex!). Your bike's running like a top (even other folks notice), and you fixed it yourself. You'll have a story for your friends and kids and grandkids... ("c'mon Grampa, not again!")
Definitely worth the effort.
david