does anyone else have the problem of air bubbles in there primer line? if so could you tell me what you did to fix it? because i found that this is what is makeing my truck hard to start because it will start with gas in the carb but when it runs through the gas and into an airbubble i dies because of the lack of gas. i think that i may have a pinhole in the primer pump which is letting air in and makeing it hard to start so any help would be apreciated .