Honestly,.. some people think blue means lean... it doesn't...
Gold, then blue, then blue/black,... just means degrees of hot...
I bought my bike with 3k pussyfoot miles on it...
The guy sold it because neither he nor the dealer could make it run right...
I,.. being the smartarse that I am, thought I could fix it easy with a carb rebuild... (I wasn't aware of this site, or vac petcocks at the time)...
Anyway,.. it took me about 2 weeks and half a tank of gas to figure out that the petcock was leaking down the vac line... during that time, (running super bad, and super rich),
the pipe went blue/black...(from running way rich!)...
I leave it that way,... 'cause it's soooo pretty,... and I don't have to worry about it...
Same reason I don't want a temp gauge... I just don't want another thing to worry about...
Lesson,..
Enjoy the ride... don't worry,... don't look for trouble...If trouble comes, it'll let you know... without you having to go in search of...
This bike is pretty tough...
Just two weak points... cam chain adjuster, and petcock... and,.. it will let you know...
Relax,.. and enjoy... that's why you have a bike...
...not to worry....
Peace,...
Serow...
...