Spark Plug Question

[djleatherb15]

Hello, I just bought some Denso PK16TT spark plugs and I gapped them at 0.054 but the plugs are gapped at 0.040 is it okay that I gapped them? Are these plugs good or not?

 

[Wolfie_85]

You got the gap right. I've never used those, so all I can say is try 'em. These don't really need extravagant plugs, platinum Autolites or Motorcrafts are what I use. Copper is ok, too.

 

[djleatherb15]

Turns out the ones that I got don't need to be gapped as they are already gapped when they leave the factory. Now I get to take them all out again and regap them to factory settings.

 

[swshawaii]

NEVER follow that "pre gapped" BS. Other engines using the same plug have different gaps. A bump on the snout changes gaps too.

 

[2stroke]

I gap every plug, and always have. I have never once trusted pre-gapped plugs. I think .054-.056 is the gap range, but I could be wrong.

 

[natenkiki2004]

Gapping is good but on the platinum ones, be careful, you need to use the proper tool to adjust the gap and not pry on the platinum tips.

 

[2stroke]

Gapping is good but on the platinum ones, be careful, you need to use the proper tool to adjust the gap and not pry on the platinum tips.

I never knew that, but then again I've never bought a platinum plug before. I run standard plugs without issue in every engine I own. Its good to learn new things. Can you still tap them to close the gap on platinum's?

 

[natenkiki2004]

I never knew that, but then again I've never bought a platinum plug before. I run standard plugs without issue in every engine I own. Its good to learn new things. Can you still tap them to close the gap on platinum's?

Yea, that's fine, you just don't get a good amount of control that way. A lot of people will say that you can't gap them but it's BS. Just be gentle and don't try to jam/wedge something against the platinum spots.