The problem seems to be the carb and not the fuel filter.
After sitting for a week, I fired it up and it ran very erratically, dying even more frequently than usual.
Spraying a liberal dose of carb cleaner in the fuel line into the carb got over that problem and it ran smoothly with the choke fully in for about 45 minutes without dying. I'll find out next week if the problem is still gone.
After sitting for a week, I fired it up and it ran very erratically, dying even more frequently than usual.
Spraying a liberal dose of carb cleaner in the fuel line into the carb got over that problem and it ran smoothly with the choke fully in for about 45 minutes without dying. I'll find out next week if the problem is still gone.