SteveSr
Addicted to ArboristSite
Saw is a late 2006 vintage. Engine was completely bone stock. It had signs of running rich as well as the fuel pooling in the intake as is known for this model.
I mostly solved the fuel pooling with an "L" adjustment. This worked pretty well but later I noticed that the "L" screw as only 3/4 instead of the factory 1 turn out. Thinking that the diaphragms had gotten stiff I decide to install an OEM carb kit. At the same time I decided to perform the common 1-hole to 3-hole muffler mod.
I put everything back together and when I ran the saw it was definitely leaner throughout the range. I think I had to open both the "L" and "H" about a half turn more from their previous settings. It seems to run well there but the idle is now borderline too high with the throttle plate closed. Enriching the "L" will lower the idle speed but also increase fuel pooling.
I have muffler modded these saws before without incident but they had different model carburetors. Is this something that is likely specific to this particular carb model? Other thoughts?
Thanks,
Steve
I mostly solved the fuel pooling with an "L" adjustment. This worked pretty well but later I noticed that the "L" screw as only 3/4 instead of the factory 1 turn out. Thinking that the diaphragms had gotten stiff I decide to install an OEM carb kit. At the same time I decided to perform the common 1-hole to 3-hole muffler mod.
I put everything back together and when I ran the saw it was definitely leaner throughout the range. I think I had to open both the "L" and "H" about a half turn more from their previous settings. It seems to run well there but the idle is now borderline too high with the throttle plate closed. Enriching the "L" will lower the idle speed but also increase fuel pooling.
I have muffler modded these saws before without incident but they had different model carburetors. Is this something that is likely specific to this particular carb model? Other thoughts?
Thanks,
Steve