250-500cc Fuel Petcock questions

I have a '08 WR250 with a fuel petcock issue. This weekend, it became clogged in the normal 'on' position. Flip it to reserve and everything is fine. So, before I drain the tank and pull this all apart (and break something), does anyone have a tip, trick or easy fix?

You can just take the tank off lay it on its side so fuel doesnt pour out and remove the petcock, you may find the long filter is blocked

Is there a trick for removing the fuel petcock? I am changing tanks on my 09 wr300, and I can't figure out how to remove the outer petcock from the inside filter part (the inside the tank part). Just pull is and wiggle, or is there another way? I already took off the two mounting screws, but the inside filter is attached to the outside petcock assembly somehow. Thanks. -Todd

I just figured it out. You just pull and wiggle it very carefully once it is unbolted. There is a long plastic filter inside that is connected to the petcock. It will fit through the hole in the tank where the petcock was bolted on if you are patient. Don't force it, the plastic is flimsy, and the petcock piece inside of it is brass, so it could easily snap if pulled at an angle. I hope this helps. Thanks. -Todd

Thanks Todd, I'm still running mine on reserve. I'll take mine apart in the next week or two...