I have been in the shadows of this site for some time. I have researched and researched topics here. Even so, I find myself somewhat chasing my tail on this one.
Some background .....Long story short, I live on an acre in the country with many trees. I had a store bought Poulan that was a gift, but we all know those can leave a lot to be desired. I have a large tree that needs to come down this spring, and that is where my gently used 025 and MS441 come in. I love nice tools....
I recently scored 3 028's for cheap. Not as a money maker, but because I like to fix and clean up good machines. So this is not for profit. Enter the first 028, a super. I cleaned her up and made her look nice assuming I had getting it running under control.
after a fresh carb rebuild, new:
impulse hose, 2 plugs, fuel line, vent line,
I can not get the saw to run more than a few seconds on the first pull. After that, I get nothing. When I pull the plug, the plug is wet and I'm getting a little bit of running fuel out of the carb enclosure.
I have been thru the carb 3 times. While it might still be plugged, the gasket order in definitely correct. The metering lever is adjusted with the bottom of the carb floor, per the Tillotson website.
The needle appears to be sitting on the seat with no obstructions. H/L are set at 1.25 out as the sticker says it should be from factory.
the saw has an electronic ignition, but it was CAKED with crud when I first got it. I cleaned out the entire flywheel area, but did not remove the flywheel or electronic ignition. I am wondering if there is anything on that electronic ignition that needs to be lighting cleaned with sandpaper? The gap between the ignition and flywheel is spot on. I have no idea on timing, that I still need to research. Spark is a good crisp blue, using a Bosch plug as the local "dealer" recommends. If I take a spare plug and bend the electrode gap to 1/4' plus, the spark is half blue-half orange.
My compression gauges are junk. They dont show above 40 psi on my good saws, so I may need to order a new one, although I don't feel that is my problem. The exhaust side of the piston looks great, although I am not sure how to identify if I have a stuck ring, like I have read about. I have a vacuum gauge and I have pressure tested my dirt bike's engine every time before putting it back into service. I am not opposed to either of these tests. I'm about out of ideas at this point.
Anyway my background began with 2 stroke dirt bikes, my 65 Mustang, and just simply wrenching on anything that needed fixed. This winter I am only 1 for 4 on fixing some saws I have acquired. Granted the other 3 are Macs, but I am starting to question why these simple machines are giving me fits.
thanks for any help
Ryan
Some background .....Long story short, I live on an acre in the country with many trees. I had a store bought Poulan that was a gift, but we all know those can leave a lot to be desired. I have a large tree that needs to come down this spring, and that is where my gently used 025 and MS441 come in. I love nice tools....
I recently scored 3 028's for cheap. Not as a money maker, but because I like to fix and clean up good machines. So this is not for profit. Enter the first 028, a super. I cleaned her up and made her look nice assuming I had getting it running under control.
after a fresh carb rebuild, new:
impulse hose, 2 plugs, fuel line, vent line,
I can not get the saw to run more than a few seconds on the first pull. After that, I get nothing. When I pull the plug, the plug is wet and I'm getting a little bit of running fuel out of the carb enclosure.
I have been thru the carb 3 times. While it might still be plugged, the gasket order in definitely correct. The metering lever is adjusted with the bottom of the carb floor, per the Tillotson website.
The needle appears to be sitting on the seat with no obstructions. H/L are set at 1.25 out as the sticker says it should be from factory.
the saw has an electronic ignition, but it was CAKED with crud when I first got it. I cleaned out the entire flywheel area, but did not remove the flywheel or electronic ignition. I am wondering if there is anything on that electronic ignition that needs to be lighting cleaned with sandpaper? The gap between the ignition and flywheel is spot on. I have no idea on timing, that I still need to research. Spark is a good crisp blue, using a Bosch plug as the local "dealer" recommends. If I take a spare plug and bend the electrode gap to 1/4' plus, the spark is half blue-half orange.
My compression gauges are junk. They dont show above 40 psi on my good saws, so I may need to order a new one, although I don't feel that is my problem. The exhaust side of the piston looks great, although I am not sure how to identify if I have a stuck ring, like I have read about. I have a vacuum gauge and I have pressure tested my dirt bike's engine every time before putting it back into service. I am not opposed to either of these tests. I'm about out of ideas at this point.
Anyway my background began with 2 stroke dirt bikes, my 65 Mustang, and just simply wrenching on anything that needed fixed. This winter I am only 1 for 4 on fixing some saws I have acquired. Granted the other 3 are Macs, but I am starting to question why these simple machines are giving me fits.
thanks for any help
Ryan
