Part #1 on the Cylinder Head Diagram
High Performance 3-Prong Spark Plugs provides a stronger charge and high conductivity that makes it more reliable when starting any 2-stroke bicycle engine.
I have built many engines in my life all the way up to 5000+ hp and have never thought these plugs would work well. It surprisingly worked very good. I noticed it creates a much more efficient combustion cycle burn therefore increasing gas milage. Stock plug works great to but if you looking for the cheapest most simple way to increase power ever so slightly and increase gas milage, then this is the trick.
Faster to rev. More bottom end torque. Faster to start. Worth the money
High Performance Three Prong Spark Plug
The 3 prong Spark plug performs very well. Better Starting and Power. I ordered another one. I would recommend it to everyone.