My buddy has a Yami he's bringing over tuesday to work on.. He says it hesitates when you hit the throttle up to about half throttle. I assume this is either his air/fuel mixture to rich or the needles need to be adjusted. Am I on or could it be something else??

 

i would start with that

 

Also check and/or clean the air filter for him.You can read more about jetting and symptoms here.
jetting
Could be old fuel, too.

 

thanks for the replys, I'll check the link out [img]i/expressions/face-icon-small-smile.gif[/img]