When tuning up a chainsaw you must make sure your air filter is clean. Take your air filter off of the chainsaw, split it in half , spray the filter from the inside to the outside, brush off any debris with a soft brush and if you have access to an air compressor, give it a blast of air to get everything out, also from the inside out. A clean filter is critical to a finely tuned chainsaw.
The owner's manual of some chainsaws may say a little more, especially on the high speed, but 3/4 should get you started for most chainsaws. Start the chainsaw up, get it warmed up, and adjust the idle so the chain isn't going around. With the chainsaw running at an idle, adjust the low speed to where you get the maximum on chainsaw keep your hand off of the throttle for this part.
Once you have done this, reset the idle, if necessary. At this point, you should have immediate response when you hit the throttle. If there is some hesitation, the low speed may need to be opened up a bit. Now, with the chainsaw on the ground, or a stump, or some place here nothing can or will come in contact with the chain, adjust the high speed. You'll have to hold the throttle down while you turn in the high speed jet. Visit Toolscue and pop over to these guys.
Here you should have an air compressor to blow the dust and chips out of the way, and to blow through all the little openings in the carb once you get it stripped down. Where the gas enters the carb, there's a little screen you may have to replace that keeps stuff from getting into the rest of the carb. Make sure that this area is clean. When you reassemble the carb, make sure the lever is level. Set the carb on your work bench upside down, and bend the lever slightly where the needle's hooked on to get the lever level. Then make sure you get the little tab on the diaphragm hooked up before you reinstall the bottom cover.
Most of profession possesses its equipments, as well as woodworking is no various. Any type of woodworker understands that the right tool for the job is actually important in creating a premium end product in a well-timed way.