Tip & How-To about Garden
When you buy a chainsaw the carburetor is set to run at sealevel basically. The fun thing about chainsaws is you can go to the top of the mountain and cut firewood. There is a lot of difference in elevation so the carburetor settings you use at your house might not run good at the top of the mountain so it is benificial to know how to quick tune your chainsaw.
You need to set the mixtures for the carburetor. There is usually a rubber grommet on the side of the housing near the carburetor. You will find a Low and High adjustment screw. The default setting for the H and L carburetor jet is usually to turn them in all the way till they stop and back them out a turn and a half. You should start the chainsaw and warm it up untill it will run without choking. Make sure that the air filter is cleaned. Start by turning the low adjustment screw out. You will notice that the rpms should start increasing. keep turning it out until the rpms start to drop then turn it back in a quarter of a turn from where it idled at the fastest rpm. At this point you may need to adjust the idle adjustment till the saw idles at a good speed but not fast enough that the chain turns. You may need to readjust the idle speed so the chain doesn't turn during idle. To set the high adjustment screw will require that you run the saw at max RPM. It may be a good idea to get someone to hold the saw so the bar doesn't hit anything while you're doing this. Hold the throttle trigger all the way down and then turn the high adjustment screw in and out until you find maximum rpm. Turn the screw back in a quarter turn. Your saw is now tuned for the elevation you're currently at.
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