I recently got a really pretty almost new little echo 301. Probably not even broke in yet. Because it's been sitting so long I put in a new carb kit ( That's kind of a tight little fussy space to mess around in if you don't have brains and dexterity). Now I'm have trouble with getting the tuning right. Is there a standard setting that I can start with? Its got a walbro wt 589. The more important question, do I need to reinstall the limiter caps, will it go out of adjustment without them? Looking for answers from people who are familiar with this saw especially. Thanks for your help, Sad in oregon