Product Description
Autolite 3910X Spark Plug is a high-quality spark plug designed for use in a wide range of engines. It features a nickel alloy center electrode for superior conductivity and durability, as well as a copper core electrode for better heat dissipation. The 3910X also has a ribbed insulator design that helps prevent misfires and fouling, ensuring consistent performance. Additionally, the spark plug has a tapered cut ground electrode that provides a larger spark area for improved ignition. The Autolite 3910X is a reliable and durable choice for anyone looking to upgrade their engine's spark plugs.
The Autolite 3910X spark plug is a surface gap plug that requires no gap settings.
A simple plug and play part that is a beneficial upgrade to the ignition system on your 212cc predator, BSP, or any other clone engine.
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Amazing for such a simple upgrade
I bought this spark plug about two weeks after installing the stage 1 kit for a Coleman 196cc mini-bike....and I can't believe how much of a performance boost you get from simply changing out a spark plug. These are hard to find and gps had the best price around. Plus I enjoyed the quick shipping and free stickers.
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Spark plug worked perfect in my 212cc
Spark plug worked great!
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Spark Plug
Works just fine. No more indexing the plug.
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Autolite 3910x spark plug
Added this spark plug to my son's mini bike with a stage 1 predator 212.Acceleration improved significantly! Gained almost 2mph on the top end!Definitely recommend it.
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quality
good no problems
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Fantastic spark plug!!!
Adding a stage one kit and some high compression, more fuel and air requires better spark. It only makes sense and WOW!!! Literally a night and day difference. Do yourself a favor, add this in your basket, it’s worth it! You will not be disappointed. Ohh did I mention you don’t even have to gap it? Literally plug and play.
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Works great in our Predator 212cc.
Dropped it in with a standard spark plug socket. Recommended!
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Spark plug
Awesome spark
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Performance sparkplug
Definitely needed in a high performance engine!! Actually adds about half to 1hp because of adding compression!
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My Predator 212cc engine
I added this Auto lite performance racing spark plug to my Predator 212cc engine & what a big different. I highly recommend it. Awesome. I also added the performance kit. Header pipe exhaust, bigger jet for the carborator. Plus the K & N air filter & adapter. It made a HUGE difference. Wicked fast! You better hang onto your lug nuts. :-)