Regardless of the type of marine vessel you own, maintaining it and ensuring it’s in top working condition is essential. When it comes to marine vessel maintenance, one of the most important parts of the process is checking spark plugs. As a key component of your boat’s engine, marine spark plugs take in high voltage electricity at one end before igniting a spark on the other end. This spark is responsible for firing the air and fuel mixture within the engine, creating the combustion that powers the boat.
As you can likely infer, your boat’s marine spark plugs are critical to the vessel’s functionality and overall performance. So how can you tell when you have bad marine spark plugs that are causing your engine to cease functioning? Triad Diagnostic Solutions is here to share some of the most common symptoms of bad marine spark plugs so that you’ll know what to look out for.
Signs of Bad Marine Spark Plugs
When a marine spark plug begins to wear and go bad, there are a few common indicators. Luckily, these signs are fairly obvious if you know what you’re looking for or even know that you need to be aware. However, you must keep in mind that letting a spark plug go bad in any inboard or outboard engine isn’t wise. While many of these symptoms are common, they often don’t become noticeable until the problem is beyond fixing. For this reason, using your Jaltest Marine Diagnostic Full Kit is critical at any stage of maintenance.
So, here are a few signs that you have bad marine spark plugs that are putting your boat out of commission:
1. Issues starting the engine.
Much like car or truck engines, a strong spark from the plugs on your marine engine is needed in order for it to run. But, when these spark plugs start to go bad, you’ll experience a hard start or no start at all.
2. Engine hesitating or cutting out.
Sometimes, the engine will start but then cut out. This is a result of a misfire inside the motor, leading to an incomplete burn of fuel in the combustion chamber. This leads to sputtering or even a complete loss of power.
3. Decreased acceleration.
Decreased acceleration means your boat engine isn’t producing enough power. This is one of the most obvious signs of a spark plug issue. However, it could be a sign of a larger mechanical failure, something the right Jaltest diagnostic tool will be able to pick up on.
4. Loss of engine power.
Finally, a loss of power could be a result of bad spark plugs. Without the spark, an engine simply can’t run. So, if you lose complete engine power or simply can’t start up, then it’s time to check the plugs.