Generator Fuel Leaks and Safety Issues

Thanks for the heads up. I replaced the filter at the carb. in our new to us, 2000 f53 with a Marquis 5500 and had an immediate leak at the threads. I nervously tightened it and it seemed ok while running but in the heat when shut down it remained pressurized and leaked a little. What a stink! I noticed pictures online of the filter and it had a red-ish tread sealing compound preapplied, mine did not. So I used yellow teflon tape, which is gasoline proof and it solved the problem.
After reading your post I am now planning to replace the pump, lines and clamps.
Like they say "an ounce of prevention.....prevents a fiery wreck " or something like that.