new or ancient gas tank & sender assy?
if it's old stuff possible the sender sock is clogging/clogged up, dirtying up the carb... once shut down a lot of debris may fall away from sock... maybe not.
unsure if this helps...
if it's old stuff possible the sender sock is clogging/clogged up, dirtying up the carb... once shut down a lot of debris may fall away from sock... maybe not.
unsure if this helps...