Try the Autolites that SouNdguy mentioned. I've had better luck with Autolites than anything else in the past few decades.
I just use a pocketknife, emery cloth, and rag to clean mine and regap, 'till the electrode burns down into the insulator in 10 or 15 years.
That's why I say decades. I don't buy many spark plugs. Each of my tractors get about 250 to 300 hours a year of use.
I just use a pocketknife, emery cloth, and rag to clean mine and regap, 'till the electrode burns down into the insulator in 10 or 15 years.
That's why I say decades. I don't buy many spark plugs. Each of my tractors get about 250 to 300 hours a year of use.