Will getting wy stator wet on yfz 250 make it not fire

Question edited for full 'year make model (what it is).
Question moved from motorcycles to make model category.
Please don't type in all CAPS, it is considered SHOUTING and is harder to read.

'clips' and 'turns' it took me a while to realise you were talking about the carburetor and you were playing with the mixture screw and needle position! 4 turns out is a lot different to the factory setting which is 1 1/2 turns out.

If it is overheating it is running too lean. As you changed the stator, also consider the ignition timing. Popping can also be caused by the ignition failing under load, coil, lead and spark plug.

Carburetor and tuning.

https://www.google.com/search?q=2004+yamaha+yfz+450+carburetor+adjustment

This carb has a LOT of jets!

https://www.amazon.ca/Carburetor-Rebuild-Yamaha-YFZ450-2004-2009/dp/B07JNYP667

....

did you set gap and or reconnect everything correctly

thats normal. probably a bad wire in the cable and by taking it off you made it reconnect.

The stator may be your problem. Sometimes a faulty stator can test good on a ohms meter, but under a load may not supply the spark needed to fire up the motor.

remove stator cover and flywheel (puller required), verify crankshaft key is not sheered, and stator plate is in its proper position. There is no timing mark on that flywheel because it is irrelevant and not needed.
This is most likely not a flywheel timing issue but a CDI timing issue. The CDI timing is governed by the TPS switch on the carburetor telling the CDI when to change timing maps and curves. If the carburetor is dirty and you cranked up the idle to run off the main circuit instead of the proper idle circuit this can happen. Or you have an improperly set, or failed TPS switch on the carb.

Check the points for proper gap and clean. The old school bikes used more than just coil and plugs. Also, often overlooked, check the kill switch connection. Often this is the case on Yamahas.

Stator coil inside the left engine crankcase cover.

check stator, ign coil, first things i would check, fire starts at stator, goes to cdi then to ign coil, usually stator, make sure spark plug is good

The stator is a magnet that passes over coils. This generates the electrical current that is then amplified by the coil to create a spark. yes the stator is needed to create the fire.

-check the fuse right hand side below the fuel tank and seat, see if it is blown.
- Check to see if plug has spark, replace if necessary .
- Did you run the bike with a low battery before replacing it? could be that your stator is shot.
-Is bike trying to start but won't?