If using the enrichener to warm up, then that will throw readings off.

 

If you had your choice of the ceramic being white or a tanish color. Which would you prefer?

Bike is 2007 FXDB FI and factory stock. Stock plug heat range runs white. 1 colder the ceramic, ground tab and the lip of the plug is a very smooth tan.

Tom

 

If it is running good, just ride it.

 

I kept smelling gas on my 97 Wide Glide, new float valve, new intake gaskets, it was better. Wife kept saying she smelled gas, plugs looked good. Had to pull tank to do Rocker box gaskets and what do you know, the vent tube had rotted and split under the dash. Replaced it, took for a ride, got the ol lady out there and she said no gas smell.