Once before and now again with my 2021 R# GT, if come home after a ride and found black spots on the header pipes (rear and middle).
This happened with a Harley I had years ago and the baked on stuff is from the fabric softener used washing my jeans.
It is the hardest MF...thing ever to remove. If you use abrasives, you polish out the satin finish. I also have never found a solvent that works...acetone, lacquer thinner, "Boot Mark Remover" from HD...nothing!
Eventually I resorted to a nylon Scotch Brite pad which took ages of scrubbing to finally get the black spots off.
Anyone else have tis happen?
My jeans occasionally touch the header shields but not the headers themselves so I'm not sure why this is happening!
Ideas?