OK, problem solved.
I hacked everything off the bowl assembly, except for the threaded part that goes into the tank.
I grafted on a piece of 1/4″ pipe, and screwed a 1/4″ ball valve, and carried on with the fuel line from there.
I replace the original fuel line some time ago with some clear 3/8″ vinyl so I can see what the fuel looks like, and it has a loop in it which acts like a sediment trap/fuel bowl.
Thanks for the help.
Finest regards,
troy