Replaced fuel line on Weedeater Featherlight Plus model, and now when I press the bulb to prime it, no gas comes into the line. Took bulb off and it is good. Checked lines and all appear to be sound. One line is smaller than the other and shorter. Other line is larger with small plastic connector in tank and filter on the end of the line. Does it matter if the replacement lines are larger or smaller as long as they are tight on the fittings?

Hi,
No line size is not important as long as one is not pinched shut. Which fitting they are plugged to on the primer is since there are a pair of check valve and they work in opposite directions.
Peace,
Clarke