I am back again for another group of people, Mercury 50 HP 2 Stroke boat user. I’ve heard there are different Mercury 50 HP 2 Stroke Problems.
In this article, I will discuss five common issues that Mercury 50 HP 2-stroke owners may face, along with their symptoms, reasons, and appropriate solutions.
Mercury 50 HP 2-Stroke Problems: Quick View
Before learning about the common Mercury 50 HP 2-Stroke problems, let’s have a quick review of the problems and their solutions it will you identify the exact problem on the engine you have.
| Problem | Solution |
| Engine Acts as It Runs Out of Gas | Replace fuel filters regularly to ensure proper fuel flow. |
| The engine Won’t Start | Charge or replace the battery as needed. |
| The fuel Bulb is Not Pumped Up Tight | Inspect fuel lines and connections for any leaks or damage. |
| The Outboard is Overheating | Check and maintain proper coolant levels in the system. |
| Makes Odd Noises | Tighten or repair any loose or damaged engine components. |
If you have time and you’re interested, please check a comprehensive guide on Mercury 75 HP 2-Stroke Problems that I covered a few days back.
Problem 1: Engine Acts as It Runs Out of Gas
One of the most frustrating problems with the Mercury 50 HP 2-stroke is when the engine behaves as if it’s running out of gas, even though the fuel tank is adequately filled.
Symptoms
- The engine sputters or stalls during operation.
- Loss of power and acceleration.
- Difficulty maintaining a steady speed.
Reasons
- Clogged fuel filters obstruct proper fuel flow.
- Contaminated or old fuel can affect engine performance.
- Carburetor issues, such as dirty jets or floats, disrupt the fuel mixture.
Solution
- Replace fuel filters regularly to ensure proper fuel flow.
- Use clean, fresh fuel and store it properly in a vented container.
- Clean or rebuild the carburetor to improve the fuel mixture.
Problem 2: The engine Won’t Start
Another common issue with the Mercury 50 HP 2-stroke is when the engine refuses to start, leaving boat owners stranded.
Symptoms
- The engine cranks but doesn’t ignite.
- Clicking sound when turning the ignition key.
- No response from the starter motor.
Reasons
- Dead or drained battery.
- Faulty spark plugs or ignition system.
- Fuel delivery problems.
Solution
- Charge or replace the battery as needed.
- Inspect and replace faulty spark plugs and ignition components.
- Check fuel lines and connections for blockages or leaks.
Problem 3: The fuel Bulb is Not Pumped Up Tight
Sometimes, boat owners may encounter issues with the fuel bulb not getting pumped up tightly, affecting the engine’s fuel supply.
Symptoms
- Soft or spongy fuel bulb that doesn’t firm up when squeezed.
- Loss of prime in the fuel system.
- Engine stalling during operation.
Reasons
- Air leak in the fuel line or connections.
- Damaged or deteriorated fuel bulb.
- Clogged fuel system components.
Solution
- Inspect fuel lines and connections for any leaks or damage.
- Replace the fuel bulb if it appears worn or damaged.
- Clean or replace clogged fuel filters and components.
Problem 4: Outboard is Overheating
Overheating is a critical problem that should be addressed immediately to prevent engine damage.
Symptoms
- The temperature gauge shows the engine running hot.
- Steam or smoke coming from the engine.
- Engine entering a reduced power mode.
Reasons
- Low coolant levels.
- Clogged water intake or water pump.
- Malfunctioning thermostat.
Solution
- Check and maintain proper coolant levels in the system.
- Inspect and clean water intakes and the water pump.
- Replace the thermostat if it’s not functioning correctly.
Problem 5: Makes Odd Noises
Unusual noises coming from the engine can indicate potential issues that require attention.
Symptoms
- Knocking, clunking, or grinding sounds.
- Whining or whistling noises.
- Rattling or vibrating sounds.
Reasons
- Loose or damaged engine components.
- Worn-out bearings or belts.
- Issues with the exhaust system.
Solution
- Tighten or repair any loose or damaged engine components.
- Replace worn-out bearings or belts.
- Inspect and repair the exhaust system as necessary.
Undoubtedly, Mercury 50 HP 2-stroke is a reliable outboard engine, but it can encounter problems like any mechanical system. Once you are well aware of the following issues, you will never have to think a lot about how to fix them.
Well, before we are apart, let me suggest you another topic that I recently covered. It’s on the way to adjust Mercury 75 hp 2 Stroke Carburetor. Happy boating!
