I de-catted my stock heads yesterday on my 2014 Ultra Limited. I used a spade bit, and I'm positive there are still a few stray pieces left over. I saw on a thread this morning that some feel you could suck a stray piece into the engine on decel. Is this possible? Seems like if it was, that you could do the same thing with a broken off piece of built up carbon...

Thanks,

 

I used a piece of copper pipe bent at slight angle and the end folded into flat chisel and used this to scrape any excess away the spade bit missed. This might help eliminate the fear of anything happening which I doubt

 

hummmm, took awhile to figure this one out???
first, i de-catted my yard with a 22lr, THEN i realized you were talking emission component.
well, carbon is not ceramic!!!
did you use a shop vac???
unless the cat is at the port, i do not think anything could be sucked back.

 

Ha! I've de-catted with a 22lr a time or two myself!

And yes...I vacuumed out all I could, and then started the engine without either slip-on. What was left over inside shot out quicker than a cat trying to outrun a 22lr...