I’ve replaced a truck load of those as well. The only good fuel line I’ve found is OEM, either Mercury or BRP.
Here’s a carb bowl off of a Merc 4 stroke. It was running the same fuel line as the one in David’s picture above. The inner liner melted and ended up in the carb bowl.
I agree with Bill, the new environmentally safe fuel lines, primer bulbs and lined fuel tanks are creating a lot of problems. Don’t forget to buy your $60 anti spray valve to keep from getting showered with gas when you disconnect the fuel line….
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