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Cardell Haynes photo
Italy, Rome
1 Level
730 Review
56 Karma

Review on 🏎️ Autolite-AR3910X AR High Performance Racing Non-Resistor Spark Plug: 4-Pack for Optimal Engine Performance by Cardell Haynes

Revainrating 4 out of 5

Great Spark Plug!: Replacement Parts

I bought this for my mild 212cc Predator engine. I have stock internals, stock flywheel and 18-pound valve springs. I had issues with the engine running rich, difficult to tune the carburetor and difficult to start with the stock spark plug. I replaced this Autolite and the bike starts much easier and the carburettor is easier to tune due to better spark.

Pros
  • Great overall performance
Cons
  • Can't remember but there was something