Join Date: Nov 2009
Location: Lander, Wyoming
J-B Weld epoxy is gasoline safe, as is Permatex Cold Weld epoxy.
I have re-glued more than a few internal filters back into or onto many fuel petcocks in my 42 years in this shop.
I wish they would sell new filters! Extreme fuel tank varnish will destroy the filters, but the rest of the petcock is cleanable/rebuildable. In which case we use an external in-line filter, but Not paper style.
Use either screen or sintered brass external filters.
Modify at "YOUR OWN RISK"!
Still riding my 1987 KL650-A1. 85,000+ miles & counting