Quote Originally Posted by volksjagger View Post
well i wanted to update on my comment "it needed it so bad (valve adjustment) it was cutting out at top speeds. the carburetor was not the cause."

it turns out i had a vacuum problem in the gas tank!!!

although the bike did like the valve adjustment the stuttering gradually came back.

after 2 trips to the dealer and about 5 test rides the second time it just needed a vacuum line swapped.

i went down on my jetting since i went so big on it, all the way to 135. and it amplified the problem. that is when they dug a little deeper and determined it was the vacuum line.

just wanted to clear this comment up. now it is running like a top again!!!

Do you have a picture showing such vaccum line needed to be replaced? I'm have the same issue. I decided to break the rubber seal on the gas cap for a temporary fix which isn't good in the long run because it allows water, moisture, dirt, ect to get into the gas tank.