I hate to sound redundant but did you check the ignition fuse? I've had mine randomly blow before. I know it's not likely but might be worth taking a peek.
Any luck 2CV? How's the 30 treating you?
I'm not going to write the saga now because it will kill my neck
I take the tiny filter out, put the bowl back on & Wallah (I know) I can blow through it like it was a toilet paper tube. Don't ask me why. I don't know!
I wonder if the ethanol in the gas leads to the demise of that stupid plastic filter??? Glad you got it sorted! [Note to self - check stupid plastic filter in petcock]...