My niece is looking to buy a CB350, how cool is that?! She sent me a pic, and the original exhaust has considerable blueing near the heads.
I know the bluing is the result of heat, but is that common on the twins? [I dont know the 350's]
Could be wrong jetting or plugs, what else would cause this?
The bike looks all original with 24K miles and in exceptional shape, the bluing has me a little concerned.
Thanks