My coil is blue and stamped 14,100. So, I thought I'd set the RPM at 14,000 with the tach and go from there.
I warmed it up first by cutting for a few mins. I knew it was rich. I then tached it and she was around 8000 RPM, no load on the bench. So I kept turning it in, 1/4 turn at a time, checking the RPM with each turn. I did this until.....until it wouldn't turn any more....and it was only turning in the 11000 range....perhaps 12000. The screw was all the way in! I don't recall exact numbers but I do know it never hit 13000.
Knowing something wasn't right, I backed the H screw out about 3/4 of a turn and started cutting wood. Honestly, this saw had never cut so good and so fast. After a bit though, it began acting like it was running out of gas....even on a full tank. Thinking that was due to being too lean, I backed the H screw out ~1/4 turn and started cutting again. No problems after that. Saw runs really, really good.
I didn't tach it....but I did shut it down while wide open in the cut....then I pulled the plug. Please see the attached photos. ALSO, for what it's worth, I looked in the plug hole with a flash light....and the piston top is covered with black stuff......except for a small section that would be towards the air filter side....and that was just bare metal.
Can anyone tell me what's going on.....besides of course that I don't know what in the hell I'm doing?
Saw may have had the limiter caps cut off and it may have had the muffler opened up.
![DSCN3345.JPG DSCN3345.JPG](https://cdn.imagearchive.com/arboristsite/data/attachments/154/154409-e7bf07fe4fbbb77f6df7e4e38963ae12.jpg)
I warmed it up first by cutting for a few mins. I knew it was rich. I then tached it and she was around 8000 RPM, no load on the bench. So I kept turning it in, 1/4 turn at a time, checking the RPM with each turn. I did this until.....until it wouldn't turn any more....and it was only turning in the 11000 range....perhaps 12000. The screw was all the way in! I don't recall exact numbers but I do know it never hit 13000.
Knowing something wasn't right, I backed the H screw out about 3/4 of a turn and started cutting wood. Honestly, this saw had never cut so good and so fast. After a bit though, it began acting like it was running out of gas....even on a full tank. Thinking that was due to being too lean, I backed the H screw out ~1/4 turn and started cutting again. No problems after that. Saw runs really, really good.
I didn't tach it....but I did shut it down while wide open in the cut....then I pulled the plug. Please see the attached photos. ALSO, for what it's worth, I looked in the plug hole with a flash light....and the piston top is covered with black stuff......except for a small section that would be towards the air filter side....and that was just bare metal.
Can anyone tell me what's going on.....besides of course that I don't know what in the hell I'm doing?
Saw may have had the limiter caps cut off and it may have had the muffler opened up.
![DSCN3351.JPG DSCN3351.JPG](https://cdn.imagearchive.com/arboristsite/data/attachments/154/154406-d1a5fbe7178c4cc6501b3e092f817cbe.jpg)
![DSCN3349.JPG DSCN3349.JPG](https://cdn.imagearchive.com/arboristsite/data/attachments/154/154407-a3b7c9cf250ffdd9ee0de84190072e3e.jpg)
![DSCN3348.JPG DSCN3348.JPG](https://cdn.imagearchive.com/arboristsite/data/attachments/154/154408-d39d5945635256dab6eac7de0f3aece7.jpg)
![DSCN3345.JPG DSCN3345.JPG](https://cdn.imagearchive.com/arboristsite/data/attachments/154/154409-e7bf07fe4fbbb77f6df7e4e38963ae12.jpg)