Originally Posted by
ifly3d
If you are running a DLE engine or similar ignition. Make sure the spring is in the spark plug cap and that it is tight. I have scene this cause all sorts of issues. A lot of guys leave those springs out or they are not snug in the cap.
Thank you.
Take the spring out might be great idea.
I also make another ground cable that connect the spark cable and the engine mount to help reduce the noise (hopefully).