My son brought over a Bolens edger with a Tecumseh 148cc vertical shaft engine that was not running. I pulled the main jet, unplugged it, spark plug looked good. Removed all the old gas and put in new ethanol free gas. Took 3 tries with starting fluid to get it running, but it started and ran well. Let it warm up, then changed the filthy oil. There is a red bulb on the side of the carb that you're supposed to pump 3 times to start this engine cold. Nothing seems to happen when you pump the bulb. Is this fixable or replaceable? I think this came from his father in law. I could submit a pic if I had to. I also have the numbers off the engine if needed. Build date seems to be 06-14.