When I restart my 99 Wolv. after the engine is good and warm I has to give it a little gas before it will start. I was wondering is this normal or is something out of adjustment a little. If it has some thing to do with the carb. I am carb illiterate. So please explain in detail. Is there a web site that will help me understand atv carbs better. I always hear guys saying "2nd notch from top" "2-1/2 turns out" thing like that and I have no idea what they are refering to. Thanks for the help

 

You may have your idle adjusted too low. Try turning the idle adj. (the round brass **** on the rider's side of the carb) IN a tad to raise the rpm slightly after the engine is warmed up.
The "2 1/2 turns out" is referring to either a pilot screw or air screw, depending on the brand of carb. Your Mikuni, I believe, has a pilot screw only located on the underside of the carb at the front of the carb. It's a very small slotted head screw & on a Warrior the nominal setting is just two turns out from seated gently. You might check this by turning the pilot screw in to a gentle stop, the turn it out 2 full turns. Ifyours is out 2 1/2 turns, it could be the cause of the hard starting when warm as it makes the pilot JET a little richer. The pilot jet circuit operates from idle to 1/4 throttle.
The "notches you refer to are on the jet needle, which control fuel flow in the 1/4 to 3/4 throttle range. The positions are generally referred to as positions one thru five, with "one" being the top-most position. The nominal position is three.
If you buy a shop manual for your ride it should diagram all the various parts of your carb as well as all the other info you'll need to work on your own bike.

 

It my help to backout the piloet screw about 4 turns, wolverines are a cold natured beast, or install a dynojet kit, mine will crank as soon as you touch the button.

 

Not trying to use your post just for myself or anything here, jcsact, but it sounds like we have similar problems. I have a dynojet kit in mine, but I still have problems, especially in the cold. My 96 Wolv does not like the cold, and it won't idle lately. It also backfires when I'm engine braking. I was wondering what the problem could be, but after reading this post, I'm wondering if it could be the jetting too.