Check out this How To Check For Spark On An ATV, Reasons For No Spark article to get more in depth steps on what to check within your electrical system for why you’re not getting spark. If it’s not you’re only problem, it’s still one that needs to be fixed before you can get the quad running. If you’re still not getting any spark, you have a bigger problem. Make sure you get the right spark plug for your engine and that it’s gapped correctly. They’re cheap and usually the cause of getting no spark.
The first thing you should try, is replacing the spark plug. Try starting the engine, if everything’s working right, you should see some spark coming out of the spark plug, jumping to whatever grounded part it’s touching. Make sure the spark plug electrodes will be close enough to something grounded. Put the spark plug on the cylinder or something that will ground it. Just take the spark plug out of the engine and plug it back into the spark plug wire. Don’t worry, there’s a quick and easy way to check for spark. The engine will turn over, but will never be able to ignite the fuel and get running. If your engine’s not getting any spark, or getting weak spark, it won’t start at all.
If you’re battery isn’t the problem, maybe something else in the electrical system is preventing the quad from starting. If you’re battery doesn’t hold above 12v after a nice long charge, you may need to replace the battery. Check out How To Charge An ATV Battery, for a more in depth guide on how to do that. You should see a reading above 12v on the multi-meter, if you’re getting less than that, you should try charging the battery. Place the leads of the multi-meter on the positive and negative terminals of the battery.
You’ll need a multi-meter set to voltage to check your battery. The easiest fix for an electrical problem is changing out the battery, so lets make sure the battery is good before we go any further. Most of the problems with an ATV not starting have to do with either not enough fuel getting to the engine, or the engine is not getting enough spark. The first things to check is if you’re getting gas and spark to your engine. Other times, there’s some bigger issues keeping your engine from starting up. A lot of times there’s something simple you can do to fix it and get back out riding. There are some pretty simple checks you can do to see where your problem is. It can be pretty frustrating when your quad won’t start and all you want to do is hit the trails.
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