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Review on πŸ”₯ Autolite 64-4PK Spark Plug, Pack of 4, with Copper Resistor for Enhanced Performance by Clint Fick

Revainrating 5 out of 5

Does what a spark plug is supposed to do

I bought this for my small 2 stroke generator to replace the inferior original spark plug it came with. Although I've read that a 0.020 gap works well, I figured I knew better since it's a very small gap. They turned out to be right, at least when used on these generators.

Pros
  • Multi-fin insulator reduces risk of burnout
Cons
  • Poorly designed