Want to know which are the best spark plugs for 2 stroke engines? We have them right here!
In this ProperMechanic.com guide, you will learn the following:
- Which spark plugs to use in any two-stroke engine
- Tips for installing a spark plug correctly
- The difference between two-stroke and four-stroke engines
And much more!
Spark plugs may seem like a small, insignificant piece at a glance, but in reality, they are the backbone of a gas engine's function because they cause combustion to occur.
But the truth is, spark plugs are what make your gasoline-powered engine run!
Below is a quick list of all our top products. Keep scrolling to learn more about how to choose and use the best spark plugs for a two-stroke engine.
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Our Top Pick
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Our Top Pick
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Autolite Iridium XP Spark Plug
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View on Amazon |
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Best Budget
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Best Budget
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Bosch Platinum +4 Spark Plug
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View on Amazon |
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Best High End
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Best High End
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E3 Powersports Spark Plug
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View on Amazon |
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Champion 810 Spark Plug
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View on Amazon | |
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NGK Iridium IX Spark Plug
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View on Amazon |
Overall #1 Rated Pick
Updated As Of 4/21/2020
- Made in the USA
- Long-lasting iridium tip
- Reasonably priced
Autolite wins for the best option because it is a reliable option and is also recognized as an Amazon's Choice product.
Trust in Autolite because it is made in America and comes with plenty of options like a non-resistor racing option, iridium, platinum, and copper.
Located in Lake Forest, Illinois purchasing a spark plug from Autolite is a great way to support the economy of the United States over other foreign brands.
Top 5 Best Spark Plugs for a 2-Stroke Engine
Check out our below list for a summary of our results. Keep on reading to learn more about your other options!
- Autolite Iridium XP Spark Plug (My Top Pick)
- Bosch Platinum +4 Spark Plug (Best High-End)
- E3 Powersports Spark Plug (My Budget Pick)
- Champion 810 Spark Plug
- NGK Iridium IX Spark Plug
How To Change Spark Plugs For Your Two-Stroke?
Changing the spark plugs on weed whackers, lawnmowers, motorcycles, four-wheelers, or even one of those 2-stroke motorized bicycle engine kits is a lot easier than changing the spark plugs on an automobile.
Since there hasn't been 2-stroke automobile for years, and there is a lot less to maneuver around when working with a 2-stroke.
Removing the spark plugs on a two-stroke consists of simply removing the spark plug wire connection with either your hand or a remover tool to reveal the spark plug, and removing the spark plug with the appropriate spark plug socket.
Upon inspecting a used spark plug from a two-stroke engine you might see that the spark plug is a little discolored from being in contact with oil.
This is normal enough, however, if your 2-stroke plug is caked in spark plug then it's time to retune your carburetor jetting for the current conditions.
The plug gap between the center electrode and the ground electrode should be according to the manufacturer's specifications. You can use feeler gauges to set the perfect plug gap.
It's important to have a good air/fuel mixture running through your two-stroke engine to get the best life out of your spark plugs. You can use non-resistor spark plugs on two-stroke engines because they don't have any other onboard electronic systems to interfere with.
If for some reason your two-stroke powered engine does have other onboard electronics, then you should use a standard spark plug that would be the same as the one you would use in a vehicle.
Read More >> How Often to Change Spark Plugs
How To Choose The Spark Plug Wires For 2 Stroke Engines?
Talk to your local auto parts store professional to help you find a decent set of spark plug wires for your specific engine. Keep in mind that spark plugs will vary due to the type of ignition system that your engine uses.
Some will be directly connected to an ignition coil, and others will be more compatible with a more universal fitting wire.
Read More >> How to Gap a Spark Plug
How Long Should My Spark Plugs Last In My 2-stroke Engine?
The short answer is from 50-100 operating hours on your two-stroke engine.
When considering spark plug life in a 2-stroke motor, it depends on the condition of the engine and its components. It's also your responsibility to mix the oil and gas correctly to avoid fouling a spark plug to the point of failure.
Familiarize yourself with what a fouled spark plug looks like on the firing end of the plug. This will help you to know when and when not to replace it.
Iridium plugs are generally the longest lasting because iridium is a super hard metal that resists heat and burns carbon deposits to prevent plug fouling and misfire.
Knowing the difference between a 2-stroke and 4-stroke is essential in understanding the function of the spark plug, as the 2-stroke engine sparks twice as often as the 4-stroke and also has oil mixed into the gas.
Read More >> How to Remove a Broken Spark Plug
My Reviews Of The Best 2-Stroke Spark Plugs
Pick #1: Autolite Iridium XP Spark Plug
Autolite is going to be a good choice for your next 2-stroke spark plug replacement because it has v-trimmed platinum side wire technology that resists wear.
When you purchase an Autolite plug from Amazon you will receive a four-pack at a super reasonable price.
Pros
Cons
Pick #2: Bosch Platinum Spark Plug
Bosch is one of the first producers of the spark plug and continues to produce products that are top of the line.
Go with a Bosch because of revolutionary technology like four electrodes that provide the optimum access to the fuel/air mixture.
If you are looking for high performance out of your 2-stroke then Bosch is a known and trusted solution.
Pros
Cons
Pick #3: E3 Powersports Spark Plug
E3 is a colder plug, which means it was designed to withstand colder heat ranges than the average plug.
This is a company that specializes in making spark plugs for sport vehicles with smaller engines.
Their Powersports spark plugs are an excellent way to enhance your engine's ability to deal with harsh conditions like cold weather.
Pros
Cons
Our Top Pick: Autolite Iridium XP Spark Plug
Autolite spark plugs require less voltage that makes for easy startups, have good fuel consumption, and accelerate quickly which is why this American company is our top choice.
A four-pack of Autolite Iridium XP spark plugs is an incredible deal on Amazon for a spark plug that is ready to make your 2-stroke run like new.
Read More >> How to Clean a Spark Plug
Final Thoughts On Spark Plugs For Your Two-Stroke
Be sure to have professional maintenance and adjust the carb on your 2-stroke to get the most life out of your spark plugs. Having maintenance done on a small engine is usually super cheap and worth the money if you don't have the experience to perform the maintenance yourself.
One last tip:
Spark plug heat range is worth considering if you ride in extreme environments. For example, you can find hotter plugs for riding in colder temperatures, and colder plugs for riding in hot temperatures. One way to know which is that hotter plugs will use a lower part number whereas colder plugs use a higher part number.
Compression ratios in gas engines like a 2-stroke are lower than the compression of a diesel engine because of the dependence on a spark for combustion, so it's good to have an idea for how to keep your spark plugs functioning impeccably.
So whether it's a Honda motorcycle or a weed eater-- now you should know how to let your 2-stroke rip at its max performance!
Read More >> How to Check a Spark Plug
