Was cutting yesterday and noticed when I was filling saw, fuel was running out and down on the handle. Did some investigating and looks as though is leaking between grommet and fuel line on top of tank. I have pulled the fuel line from inside the tank and no cracks in fuel line itself. Line pulled very easy with little resistance. Does this grommet deteriorate and can it be replaced from the top of tank. Looks as though if you pull fuel line off carb you could slide new grommet on and push into top of tank. Thanks in advance for advice.