I decided to replace the fuel line from the tank to the pump to the carb on my 165. When I pulled the fuel line off the tractor I realized it smelled really badly...like a roofing tar smell. Anyone experienced this? I wonder if the OEM rubber is deteriorating from the ethanol added to our fuels. I don't remember the SeaFoam smelling like that when I added it to my fuel can so I don't think it's that.
The smell was so bad that upon going in the house for the evening my wife insisted that I immediately take a shower and put my clothes in the slop sink in the basement.