QUADCRAZY Log in and site issues

I just inherited a 2001 550 from a friend have a friend and have no idea maintenance Pass there is no manual. It is running pretty good right now, definitely needs some attention and tlc.  What basic things should be done to get it in good working order and where can I get a manual?

I WANTED TO UPGRADE THE CARBURATOR ON MY 1992 BIG BEAR 350, SO I ORDERED A NEW CARB FROM EBAY.  ACCORDING TO THE WRITE-UP IT WAS A GOOD FIT FOR BIG BEARS FROM 1988 TO 1996.  WHEN I REMOVED MY ORIGINAL CARB I NOTICED THAT IT WAS DIFFERENT FROM THE NEW CARB MY CARB HAD TWO THROTTLE  CABLES THE NEW CARB ONLY HAD ONE CABLE.  HOW CAN I MAKE THIS CARB WORK ON MY TWO CABLE THROTTLE?  

I’m looking for a top end kit for a Yamaha. I would like to see how well the engine runs before spending $6-$7 hundred on oem. Niche has complete kits from $1-$2 hundred.  Anyone have experience with Niche or similar Chinese companies? 

Just thought I'd start a new thread for newbies to the site!
If you're new here, tell us who you are, where you're from and what you ride!!!
Lets get to know each other a little better shall we?
I'm not new to the site, obviously, but...
I'm Kristin from Denver!!! I ride a 2008 Yamaha Rhino. She's my muddy baby!!!!!! Several aftermarket parts on her. She's good to me! We try and ride every weekend. This weekend we're off to MOAB! :woot:

This is something I'm extremely curious about. Has anyone ever attempted to buy a quad (or any other vehicle) from an impound lot? I've always wondered if this could be a bargain, or a waste of time. Google searches do turn up some helpful results. Looks like the state of NJ holds auctions online which I'd be a bit hesitant about.
 
My online searches haven't really turned up any results of anyone buying an ATV this way. I'd be really curious if anyone tried this, or knows someone who has. I've actually found a couple pages with online auctions for my state, but none had ATVs.