NEED SOME ADVICE ON A PROBLEM IM HAVING WITH MY FLSTC.....TO START WITH, I HAVE VANCE & HINES LONG SHOTS WITH THE STAGE 1 KIT FOR THE FUEL INJECTION AND A DFO......THE PROBLEM IS AT STOPS OR AFTER IDLING FOR A MINUTE OR TWO, A PUFF OF BLACK SMOKE COMES OUT OF THE PIPES WHEN I CRACK THE THROTTLE TO PULL OFF.....THE LOCAL HARLEY SHOP SAID EVERYTHING IS ALL RIGHT AND THAT I SHOULDNT BE CONCERNED WITH IT.......I PULLED THE PLUGS, RESET THE GAP AND REINSTALLED (THE PLUGS WERE NOT FOULED OR BLACKNED, MOSTLY GRAY WITH A LITTLE SOOT) BY THE WAY....THE PLUG GAPS WERE OFF (032) I RESET THEM AT 040. I STILL FEEL ITS RUNNING TO RICH.....ANY HELP?? THANKS

 

Install a Power Commander III it should take care of your problems.

 

Get the SERT. Have it tuned. Worked for me realy well.

 

I had Stage I and Vance & Hines. Same problem. SERT fixed it up.