If the valves are still correctly adjusted, be suspicious of the cam chain ! Max

 Not just snug, but tight, but don't strip'em.  Then check after you tighten 'cause they will have changed.
 And don't confuse your .mm's with your inches,  I did that once!
 Also, very hot days will naturally increase valve noise.  If you can't hear valves on an air cooled thumper,  they're too tight.

Sorry for the late reply on this subject. Been really busy
I started it up yesterday and the valve noise was back to normal so i took it for a spin to the local coffee shop and listened there, normal. then went back home and listened once again, normal sound. I think i need a gremlin bell or something.  I appreciate all the input. maybe I'll heed the warning and take a look at the cam chain    
   -Scott-

Serowbot, you just answered a quest I was ready to ask.  Here in South Mississippi, I have noticed my valves, or think that is what it is, becoming a little more noisey than they were earlier this year.  The temps here have been in the mid 90s almost every day with high humidity.  I wasn't aware that the high heat made much difference in valve noise.  Now I can rest easier.  Don't want to hurt Suzi.

Its the little things that will drive ya nuts. Touched my speedo and sure enough it squeaked, saving that one for a later date. It seems everytime I i check the furom i find something else to fix.