[Rinkerfam]

I feel your frustration. I had the exact same problem with an older mercury outboard. I spent a lot of money on diagnostics, electronic ignition components, water impeller, primer bulb and flexible fuel line. Ultimately the problem was a seven dollar piece of copper tubing that came out of the fuel tank, and ran through the side of the transom where it was attached to the flex line and bulb. There was a ninety degree elbow where the line came through the hull and it had cracked there. It was a simple as that. I hope you find the cheap fix first!!