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On my merc 50 hp 4 stroke I was pulling the fuel hose off and the tubes that they attach to came out of the body of the carb, what can I do to make sure they seal when I put them back together, may be why it was having problems revving.
Had this problem with a vintage VW carb....tried the whole JB weld thing and ended up replacing the carb....A friend suggested scoring the fuel hardline when you put it back together...