It is not the end of the world. Take the heads off and have them both reconditioned with new hardened valves and valve seats. Then this will never happen again. Paul In a message dated 3/15/2004 5:20:07 PM Eastern Standard Time, Ms1world1313 writes: > I was very sad to learn that I have a burnt exhaust valve on my 65. Can >anyone give me an idea of what causes that, how to avoid it in the future, and >a reasonable price I > should expect to pay to have it fixed. Thanks! > > Jasmine > 65 Crown