I'm at a loss. Saw won't fire AT ALL. Here's the rundown:
cleaned the carburetor, set to factory one turn on hi and lo.
New fuel line.
Checked flywheel key alignment.
New spark plug.
Disconnected the coil kill wire to test for a grounded coil.
Tested for spark--ok. Tested plug--ok.
added fuel mix to the carb throat.
In every case, absolutely no response. Then I checked compression. Now I don't have a tester that is specifically for small engines, but without pressing the decompression valve, I never got above 80 pounds. Never seen one this low before. With compression that low, will it not even pop to ignite the fuel? I looked into the intake and the piston/cylinder wall look ok. Looking at the exhaust side the piston looks pretty bad. I first thought I had an electrical issue, but coil/wire/plug seems fine. I need to know if I'm on the right track thinking that a new piston/cylinder is in order. Thanks for any insights on this. Doing this for a friend.
cleaned the carburetor, set to factory one turn on hi and lo.
New fuel line.
Checked flywheel key alignment.
New spark plug.
Disconnected the coil kill wire to test for a grounded coil.
Tested for spark--ok. Tested plug--ok.
added fuel mix to the carb throat.
In every case, absolutely no response. Then I checked compression. Now I don't have a tester that is specifically for small engines, but without pressing the decompression valve, I never got above 80 pounds. Never seen one this low before. With compression that low, will it not even pop to ignite the fuel? I looked into the intake and the piston/cylinder wall look ok. Looking at the exhaust side the piston looks pretty bad. I first thought I had an electrical issue, but coil/wire/plug seems fine. I need to know if I'm on the right track thinking that a new piston/cylinder is in order. Thanks for any insights on this. Doing this for a friend.