The fast way to clean up burn marks from your headers

1-Start the bike
2-Let it run in idle for a couple minutes
3-Turn off the bike
4-Spray oven cleaner
5-Wait 5 minutes
6-Clean with damp towel
7-Redo steps 1 to 6 a second time
8-Wipe hard with dry towel
9-Wash the bike to remove all cleaner from plastics

Voila.

Of course, do outside. The hot headers will make the oven cleaner boil, but you will see it boil right were all the burn marks are.

Keep spraying until it stops boiling and the foam starts adhering. When it boils make sure you don't breathe the fumes.

It does not make the headers look like new, but it removes all the dark spots, that's for sure. The marbled-copper texture won't go, for instance, and I don't think you can get the new header look again, unless you remove the headers and work hard on them.

But you can make them shine if you rub hard.

Pants and boots marks. Oven cleaner worked like a charm.

Aaaah them header burns are nasty aren't they?

I have one on my forefinger from trying to adjust the idle with my bare hand. 4 days later the burn is still not healing.

That's how you learn.

The oven cleaner works ok but it will not replace what you used to do.

It's a lazy trick that works well but it's not excellent.

The thing is: it's a header on a dirt bike.