Ever since I got new plugs starting been easy, when I removed the old ones they were horrible looking and reaked of gasoline.

Soo I removed the plugs today, main reason is idle has been getting more and more rough.

The tailing (top right?) looked fine, not much caked on them, brown coloring and the thing in the middle was decently clean.

The leading plugs had more caked on them, 1/4th of the plug was brown the rest black and the area (surface) to the circle where the middle point is, was more white looking (lean?) they each had **** on the middle thing and looked much worse shape.

Soo after using a wire brush on all the plugs the top ones turned out looking rather newish the bottom still have alil thing on the center that i cant remove but came almost brand new looking, idle so far isn't rough

Is this correct to do once and awhile? The plugs look great, the cars driven hardly ever theres maybe 500-700 miles on these plugs...

 

i do it once a week or so, just to clean the gunk off cuz they run rich

 

on my 4wheeler I would change the tires and didn't have a jack, so I'd just tip it to one side to change both tires on the other side.

After a while of this it wouldn't start. We took the plug out and cleaned it and it still wouldn't start until I put a new plug in there.

So either the cleaning technique was bad or it is always better to use new plugs.


A bit different I know seeing how we have 4 and they're expensive vs. a single plug

 

For the ones that get carbon fouled and caked, you might want to switch to a hotter plug.

 

Fix the car. If the plugs foul due to a rich mixture then the car is not running correctly. Perform a full tuneup, have the injectors cleaned if it has not been done, etc.

Generally once a plug has been totally fouled with fuel it needs to be replaced.

Some black carbon buildup is totally normal.

 

yeah just fix the car... you should NOT have to clean your plugs on a regular basis.. well actually u should NEVER have to clean your plugs...