New carb with needle on leanest level and it flat out WAAAAaaa. I almost ordered a 310 jet today /QUOTE]
That's what I call flat, lean condition. Comparison needle you have now to one in original carb. If og is thinner use it. Either way set clip to !iddle notch.
I got a deal on the quad and it came with what appears to be an after market pipe. After I get it running well I need to find some rear breaks (brake pedal, cable and caliper/pads). I read up on and watched a plug chop video and that part makes good sense. Just looking for more info before buying a bunch of different jets.
Good that you understand what plug chop is, do it. See if pipe has any markings. What do you have for air filter setup ? What is your elevation and temperature ??
When tuning best to change one thing at a time, check results.
More than likely you'll still need a selection of Jets to go from winter to summer. Basically have to go one size for every 20* of change.
With more information we can get you closer.
As speedy mentioned a compression test is a good idea.
See what pilot jet you have and how many turns on air screw from LIGHTLY seated.
Also if you have a preference 2003 unplug the TORS Brain, 3 wire plug under hood. It should be unplugged if you have anything other than stock carb. If 2003-2006 search the forum for how to do it, have to cut one wire IIRC.
Although I have no clue how to post a pic, everyone loves pics