I havent, it's been snowing here. I did start it up to give it a quick test the other day.. Was running like crap... It may be the low-end adjustment...

Is there an easy adjustment for that? or is it on the carb?

 

The idle adjustment or low speed adjustment would be the needle clip. You want to lower the clip to richen it up.

 

My personal experience is, it's never the easy adjustment unless it belongs to someone else.

 

I have a 2003 trailboss 330 mine was backfiring but then i realised it was through the carb now its getting no fire at all new coil new plug nothing is working someone gove me something to go on and i just have to put this in here ive had this quad since it was new and i love it ive had everything from a bayou to a warrior to a 400ex and this is my favorite my skid plate/chain guard i think was the best one i have seen the warrior bends into the sprocket and this is the first problem ive had out of it other than the chain wearing out i put new sprockets and chain and i would recamend going with aftermarket sprockets because i can run mine 70mph all day if someone wants more speed but its a utility not a sport remember that ok

 

A comma every now and then would help in understanding your posts.. 2003 was the first year of the ecm modules and could be the problem you're having if it shorts out.Item#18 on the parts breakdown.Dirt Cheap Yamaha, Honda & Polaris OEM Parts & Accessories – Cycle Parts Warehouse Best to have a manual that can help you trouble shoot ignition problems rather than throwing parts at it.Here's a free link to a pdf manual.
http://gh-ftp.com/ORV%20Manuals/Pola...0%20-%20SM.pdf