Common ATV Engine Problems Every Rider Should Know
Experiencing an engine problem while out riding your ATV is never fun. But being able to identify potential issues before they become serious—and knowing what to do to fix any problems—can help turn a disaster into more of a minor inconvenience. On the other hand, there are some issues that don’t provide any warnings and can’t be easily resolved in the field, so be sure to ride with others, and make sure you always carry towing straps.
Though the goal is to minimize potential issues while when on the trails, unexpected maintenance needs can happen. To help riders stay prepared, ATV Trader is discussing some of the most common ATV engine problems so you know what to check before you head out, and you have some pointers on what you can do to potentially avoid those issues.
Clogged ATV Air Filter
Some of the most common engine issues with ATVs are also some of the easiest to avoid—such as the ignition and air/fuel systems, starting with the air filter. An ATV air filter’s primary role is to prevent dirt, dust, and debris from getting into the engine, which protects the cylinder walls and piston rings from getting damaged. It also helps keep the engine running smoothly and efficiently by ensuring the proper air/fuel ratio in the carburetor.
A clogged air filter restricts the amount of airflow which can affect a variety of things, including gas mileage and engine performance. By making sure that you change your air filter at the intervals suggested by your Owner’s Manual , you can easily prevent stalling, rough idling, and reduced power. This will also keep the carburetor from getting dirty or clogged, which would need to be cleaned, rebuilt, or replaced if that should happen. Regularly replacing and cleaning your air filter can be done in a few steps, saving you time, grief, and expense.
Worn ATV Spark Plug
Another easy-to-manage issue within the ignition and air/fuel systems is the spark plugs. A worn or fouled plug or plugs can make it difficult to start your quad, and it can cause a loss of power, misfires, and reduced fuel efficiency. Check your plugs regularly and clean them with a wire brush or 220-grit sandpaper if there is a build-up of carbon. When in doubt, you may just want to replace the plugs at regular intervals to ensure peak performance.
ATV Fuel System Blockages, Damage, or Expiration
Alternatively, bad fuel or fuel system blockages could be the culprit. Like the other filters, replace your fuel filter at the intervals recommended by your Owner’s Manual to avoid performance. If the air and fuel filters are clean, the spark plugs are in good shape, but you still have ignition or engine performance issues, the fuel itself may be the culprit, so ensure you also follow our checklist on the most common reasons an ATV is not getting enough fuel.
Fuel blended with ethanol generally stays good for about 30 days, so if you haven’t been riding much or your ATV has been sitting for a while, you may want to drain the existing fuel in the tank and replace it with fresh fuel. If all of the above doesn’t resolve the issues you are experiencing, you might have a bad fuel pump.
ATV Battery and Electrical Shortages, Dead, or Failure
Of course, the air/fuel mixture is basically worthless if you don’t have the energy needed in the first place to light it all up. That said, the battery and electrical system are another common source to investigate when your ride is experiencing engine issues. In the event that your ATV engine won’t crank or roll over, the battery could be low or dead, or you could have other electrical issues.
If you test the battery and it’s fine, disconnect the cables and take a wire brush to the battery posts and the inside of the cable connections, then reconnect them. If that doesn’t resolve your issue, you may need to check your starter motor. If you have doubts, you can always take your ATV to a professional service center for diagnosis and any repairs needed.
Keep Your Engine Roaring
Remember, keeping records of the regular routine maintenance will boost its resale value. Additionally, the upkeep typically prolongs an ATV’s lifespan. If the time to sell , ATV Trader has the largest online selection of new and used ATVs to choose from, and we can help you list your current ride to make your next purchase.
Barrett Baker
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