hi all, can someone tell me what the lo and hi rpm of most string trimmers? what rpm should they idle at? thanks.
hi all, can someone tell me what the lo and hi rpm of most string trimmers? what rpm should they idle at? thanks.
hi all, can someone tell me what the lo and hi rpm of most string trimmers? what rpm should they idle at? thanks.
thanks for the response, guys. pg
As a rule of thumb you can set the low idle until the engine runs smoothly and the trimmer head doesn't rotate, if the head spins the idle is to high.
I have an Echo GT-2100 that was purchased around 25 years ago. When I use it I noticed that when it is at "full-throttle", it sounds a lot more powerful and more "revved up" than my new SRM-225 at full power. Also, when it is idling the head does spin. So from what you said that means that the idle rpm is too high, and maybe that causes the "full-throttle" rpm to be too high also? Correct?
If the Trimmer head spins then the idle is set to high, the clutch should not engage at idle. You have a idle adjustment, high and low speed adjustment screws on the 2100. If you adjust the idle to the point where the head just starts to spin then back it off so the clutch doesn't engage or spin the head, you should be running some where around 3000 rpm and that should not have any effect on the top end speed of the unit.
What type trimmer do you have or trying to set up?