So i have a mostly stock '01 FLHT, and lately my plugs have been quite white. A few bigger jets (just to try and get some color) haven't helped. I've checked for intake leaks, even replaced the gaskets to be sure, and swapped my Crane ign mod. for the stock one..still no change. Head temp high after riding (300+/-). Normally i run a 45slow and 190main. Any suggestions? (BTW it still performs well, no coughing/sneezing)

 

Nothing wrong with an off white color. If it ain't farting and sneezing off idle, or missing a beat at a steady speed down the highway, you're probably good. It's hard to judge by color. If it really bothers you call a few dyno shops and see if they will run a pull or two for you just to give you some afr readings.