Well I finished the rebuild job (previously posted as "Adjusting Points - 3 lb sledge) and tried to get it running ....... spent most of yesterday trying to get her running
. I can get it to cough and sputter but thats it. Been through all the fundamentals:
1. I believe the rebuilt carb is good as the saw was running decent for a short period before I started the big rebuild. Have tried every combination of L & H screw settings from the most conservative to the excessive where I had gas dripping backwards out of the air filter, still no go. (the gas comming out of the carb at excessive screw settings could be a sign of backpressure from the cylinder but I put in new rings as part of the rebuild). The best coughing and sputtering was with the Low screw about 1/4 to 1/2 open and the High screw 1 to 2 ...... sort of what I would expect.
2. I have what I would think is a decent steady spark, at least via visual observation of the plug against the side of the cylinder. Even opened a plug up way beyond .020 and had spark. Points are at .016, flywheel .010, I even took it half-appart again to check those.
3. I have a Mega-fire module in transit that I ordered to try but I wanted to see if the old points and condensor were still good. Assuming that I install the Mega-Fire module next week replacing the points and condensor, and it still won't run, that kind of leaves it to the coil, assuming that I not missing something somewhere else. I may be getting a visual spark but not enough of one to make it run under compression.
If the coil is the problem, I can not find any source of a good coil, new or used, other than a guy on ebay who rebuilds your old coil for $70.
Anyone have any suggestions where to go from here, (besides trashing the old gal)
. I can get it to cough and sputter but thats it. Been through all the fundamentals:1. I believe the rebuilt carb is good as the saw was running decent for a short period before I started the big rebuild. Have tried every combination of L & H screw settings from the most conservative to the excessive where I had gas dripping backwards out of the air filter, still no go. (the gas comming out of the carb at excessive screw settings could be a sign of backpressure from the cylinder but I put in new rings as part of the rebuild). The best coughing and sputtering was with the Low screw about 1/4 to 1/2 open and the High screw 1 to 2 ...... sort of what I would expect.
2. I have what I would think is a decent steady spark, at least via visual observation of the plug against the side of the cylinder. Even opened a plug up way beyond .020 and had spark. Points are at .016, flywheel .010, I even took it half-appart again to check those.
3. I have a Mega-fire module in transit that I ordered to try but I wanted to see if the old points and condensor were still good. Assuming that I install the Mega-Fire module next week replacing the points and condensor, and it still won't run, that kind of leaves it to the coil, assuming that I not missing something somewhere else. I may be getting a visual spark but not enough of one to make it run under compression.
If the coil is the problem, I can not find any source of a good coil, new or used, other than a guy on ebay who rebuilds your old coil for $70.
Anyone have any suggestions where to go from here, (besides trashing the old gal)
