Anyone ever had any luck cleaning fouled spark plugs? I've got some plugs that are very carbon fouled. Can I clean them or should I just buy new ones. I've got a few sets like this.

 

A new set of autlites is only $10, so i would just do that instead of cleaning fouled plugs...

 

I would replace them with new.

I would also try to figure out why they are fouling. I have replaced mine in the past only to foul another new set.

 

I suggest just replacing #1 (or the easiest one to get to) with a new plug double checking the gap and watching it for awhile and at the same time making certain that the rest of your electrical system is good as well as your fuel system and A/F.

If it continues to foul, systematically try to eliminate the problem before you do all the rest of the plugs.JMHO

 

Make sure you are getting the right heat range. Colder plugs wont burn off the carbon as easily which might be whats happening.

 

I'd say spend the $15 max and get a new set of NGK-TR55's. Make sure the gap is set at .05. This way you know all of them are good to go with no carbon build up. Also figure out when you are fouling up the plugs. Just my .02