Oby1
ArboristSite Lurker
Hello,
Saw stopped suddenly, acted like it lost ignition. Through trial and error, realized it still had spark. I was told by a technician it most likely was a fuel problem, either cracked fuel line, plugged filter, or plugged carburetor, possibly a plugged spark arrestor in muffler.
Spark arrestor wasn't plugged. Found a new replacement carb, put that on, replaced the fuel line and tank filter with new parts. Used one full turn out on both H and L adjusting screw on carb to begin. Saw will start using raw fuel poured in carb but I can only keep it running by putting my thumb over the butterfly valve on the carb and continuously adjusting the flow. That only works for about 30 seconds before it dies. It seems to get fuel from the tank, fuel poured in carb wouldn't last that long. Saw will not start without raw fuel poured in carb. Saw runs at high speed and will quit when it slows down. I don't know about compression since I don't have a compression tester but it seems to have similar resistance as before when pulling the starter cord. New spark plug is installed.
Thanks for any advice!!
Saw stopped suddenly, acted like it lost ignition. Through trial and error, realized it still had spark. I was told by a technician it most likely was a fuel problem, either cracked fuel line, plugged filter, or plugged carburetor, possibly a plugged spark arrestor in muffler.
Spark arrestor wasn't plugged. Found a new replacement carb, put that on, replaced the fuel line and tank filter with new parts. Used one full turn out on both H and L adjusting screw on carb to begin. Saw will start using raw fuel poured in carb but I can only keep it running by putting my thumb over the butterfly valve on the carb and continuously adjusting the flow. That only works for about 30 seconds before it dies. It seems to get fuel from the tank, fuel poured in carb wouldn't last that long. Saw will not start without raw fuel poured in carb. Saw runs at high speed and will quit when it slows down. I don't know about compression since I don't have a compression tester but it seems to have similar resistance as before when pulling the starter cord. New spark plug is installed.
Thanks for any advice!!