Start with the "H" and "L" needle valves 1.5 turns CCW from lightly seated. then tune for performance like this: Carburetor Adjustment by Madsens.com http://www.madsens1.com/saw%20carb%20tune.htm CW is leaner; to lean will destroy the saw. If over tightened closed (CW) the adjustment screw faces are easily marred; marred adjustments are difficult to impossible to set properly. Clean the air filter and spark arrestor; adjusting with a dirty filter can cause a run lean condition once cleaned and the saw run. If the saw cannot exhale it cannot inhale. There are 2 wav (sound - idle & full – may not be highlighted) files that I find most helpful, I think you will too.
If you have more questions or need additional help please reply below and I will get back to you. Thank you for using FixYa and Good Luck. HTH Lou
Answers & Comments
Start with the "H" and "L" needle valves 1.5 turns CCW from lightly seated. then tune for performance like this:
Carburetor Adjustment by Madsens.com
http://www.madsens1.com/saw%20carb%20tune.htm
CW is leaner; to lean will destroy the saw. If over tightened closed (CW) the adjustment screw faces are easily marred; marred adjustments are difficult to impossible to set properly.
Clean the air filter and spark arrestor; adjusting with a dirty filter can cause a run lean condition once cleaned and the saw run. If the saw cannot exhale it cannot inhale.
There are 2 wav (sound - idle & full – may not be highlighted) files that I find most helpful, I think you will too.
If you have more questions or need additional help please reply below and I will get back to you. Thank you for using FixYa and Good Luck. HTH
Lou