Re: Won't stay primed
while an air leak is possible I doubt it,
you have to remember all that bulb does is insure the carburator fuel bowls,fuel pump and lines are primed before starting, after that its usless.
cars would have had primers if the got turned over for storage.
on motors that never get tilted we never use the primer bulb. I havent squeezed the bulb on my F150 in almost a year, I rarely tilt it and the VST holds a lot of fuel as compared to a carb fuelbowl. some larger boats dont even use primer bulbs, we simply wire in an electric pump with a momentary push button switch as there is no where to put a bulb that is esily accesible.
as its on the suction side of the pump it wont stay hard nor is it designed to.