WHAT? ? ? I would take it to my LHS for a opnion - that part dont easliy strip.
I just think as you were turning to get the needle out the whole thing come lose. Tighten it back up.
Something dont sound right
When I get a engine - I crank the part that hold the nipple down and never heard of one stripping
hum
A blockage from what clumpy fuel ? ? ?
Over the phone huh?