If you had the tools and skills to do this, you probably wouldn’t need our advice anyway. So, getting your carburetor tuned at a mechanic’s shop is easy and affordable and easily makes it worth doing. A mechanic’s shop will have the tools required to fix your ATV, and they can quickly tune it up for around fifty dollars. Most people don’t have all of the proper tools for this in their home garage. If you discover you need to retune your carburetor, then we suggest you take it into a shop and have your ATV tuned there. Whenever that happens, you’ll need to readjust your carburetor. When your ATV’s carburetor isn’t adjusted correctly, then the air screw and fuel screw’s balance between your carburetors are out of line. #2 Tuning Your Carburetor to fix a Sputtering ATVĪnother reason why your ATV might be sputtering is that your carburetor needs tuning. By doing this you’ll be able to see what parts need to be replaced. Do a complete visual inspection of your ATV as well so that you can assess where the leaks are coming from. Chances are if you need to replace one, then all of your float bowl gaskets are probably worn out and failing or close to failing.ĭiagnosing should be pretty easy as you should notice the smell of gas if your ATV is leaking gas, you may even visually see the gas leaking. If your ATV has more than one carburetor, you should change each float bowl gasket you have. Plus, many online tutorials guide you through replacing a float bowl gasket on an ATV depending on what carburetor you have so that should make this fix pretty easy (You’ll need to search for that information based on your ATV’s carburetor, and then proceed from there). Luckily, float bowl gaskets aren’t expensive (you will need to find your model, but here are some general prices on Amazon for different models). You may need to replace your float bowl gasket if you notice that your ATV is sputtering because of a gas leak. To see if this is the reason why your ATV is sputtering, pay attention to the smell of gas around your ATV. The gasket you want to look at is located right above the float bowl, which is at the bottom of your carburetor. If your carburetor has a gas leak, it was probably caused by a gasket that became brittle or cracked. If your carburetor has a gas leak, the engine will be starved for gas, and that’s why your ATV will sputter when you turn it on. #1 Diagnosing and Fixing a Carburetor Gas Leak We’ll cover how to diagnose and fix these issues below. If you have the right set of tools, then diagnosing the problem and making the repairs should be relatively easy. When something goes wrong with an ATV’s carburetor, there are three main things that can cause the ATV to sputter. If you have an older ATV with a carburetor, you shouldn’t be surprised to experience some problems where it isn’t functioning quite right. However, carburetors can be finicky, and that’s one of the reasons why we see fuel injectors used more commonly today. Carburetors work great on ATVs because they provide the the correct combination of air and fuel that’s necessary to power up the ATV. Carburetors have been around for a long time, and they’ve been used on many older machines. If you have a fuel injector, you can skip this section. Some ATVs have carburetors, and some have fuel injectors. One of the most common reasons ATVs sputter has to do with carburetor problems. Below we’ll cover some of the reasons why an ATV will sputter that you should check. As long as you take a close look at the mechanics behind this issue with your ATV, then you should be able to figure out why your ATV is sputtering and then fix it. Other sputtering issues can be caused by an ignition issue.įor the combustion chamber to work on an ATV, it needs air, gas, and a spark. The most common reason has to do with a carburetor problem like a tuning issue, vacuum leak, or gas leak. So, what can you do with a sputtering ATV? There are many reasons why an ATV sputters. A sputtering ATV is something we get asked a lot about so we decided to address it. However, when a mechanical issue occurs, it not only cuts back on the amount of fun you get to have outdoors, it also winds up costing you time and money. Nobody enjoys experiencing mechanical problems with their ATVs. When your ATV has issues that make it challenging to ride and enjoy, it can be very frustrating.
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