So far I've tried to new black "standard" gas tanks and in a few days I, had each one start to leak. Common problem? If so where are the leaks coming form besides the fuel petcock?
I had nothing but trouble with my stock petcock.I wouldn't throw it away if it was doing what it is supposed to... shutting off the gas flow. A fiber washer (usually colored red) is supposed to fit between the petcock and tank... is it there? I never had trouble with the carb not getting enough gas. Even if it is restricted, so long as it is getting enough, a bigger line doesn't change anything as the carb can only use so much gas. My opinion anyway.
SB