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How to Tell if Your Outboard Fuel Pump is Bad

If you’re having Yamaha or Mercury outboard fuel pump problems, you’re no doubt feeling frustrated. Maybe your engine is sputtering and dying while you’re trying to enjoy a day on the water, or you’re burning through your fuel faster than ever. Either way, the symptoms of a bad fuel pump on an outboard motor can be a headache you didn’t see coming, and now you need to know how to tell if your outboard motor fuel pump is bad.


What are the symptoms of a bad fuel pump on an outboard motor?


When you try to start your engine, you should be able to hear the sound of the fuel pump engaging. If that familiar sound can’t be heard, there’s a chance it could be due to issues with the battery. Check the battery first, and depending on other symptoms you may be experiencing, it could be a good idea to call a professional when all else fails. Still, if you’re missing that motorized sound, that’s a strong sign that the fuel pump may be having issues.

Slowing, Stopping, or Sputtering

Another common symptom of a bad fuel pump is sputtering or misfiring. If you’re experiencing a bumpy ride (or possibly losing speed altogether), it could also be a sign of a clogged fuel filter that won’t allow a consistent flow. You’ll want to check the entire fuel system to ensure that any clogs and blockages in the system are addressed.