On page 13 of the owners manual there is a idle speed adjustment procedure.
If the idle is too fast , clutch engaged , chain moving then turn idle adjust (T) down ccw to just below clutch engagement .
If idle is too slow , engine stalls , then turn idle adjustment (T) up cw to just below clutch engagement .
To set the fast idle , pull choke out to full position then push choke all the way in . When saw starts blip the throttle trigger to return to normal idle .
Are you running this 141LE without the muffler ?
If the idle is too fast , clutch engaged , chain moving then turn idle adjust (T) down ccw to just below clutch engagement .
If idle is too slow , engine stalls , then turn idle adjustment (T) up cw to just below clutch engagement .
To set the fast idle , pull choke out to full position then push choke all the way in . When saw starts blip the throttle trigger to return to normal idle .
Are you running this 141LE without the muffler ?