Quote Originally Posted by dmase View Post
I am a far cry from being a engine repairman. I need some advice from someone who knows a lot more than I do.
I had a problem on the water yesterday after many years of no problems. After getting home I found the fuel bulb on my 150 Johnson is not staying tight and my motor will start to run rough after a few minutes. when I squeeze the bulb a few times it will straighten right out and purr. Here is the thing. I cannot find a leak in the gas line anywhere. I know it s getting air from somewhere. I am going to replace the whole fuel line anyway because it is due, my question is could this be something else that I am overlooking?
Thanks in advance for your input.
When is the last time you replaced the primer bulb? The bulb it self could be bad. They do go bad over time. I have a similar problem. My primer bulb goes soft when sitting to long in the sun. Only when it is warm out side. In the 80's. But once I change my primer bulb, I am good for a year or so. If you replace your primer bulb and you still have problems, then yes, it could be your fuel pump. Or some restriction from your tank. A new primer bulb is a cheap fix before taking it in to a shop.