I'd been looking to find a replacement for my old & cheap curved-shaft weed whacker. I picked up an Echo SRM-2100 (straight shaft) tonight off Craigslist for $30. It wouldn't start (owner said it ran last year), but I checked the compression before buying it, and got 150 psi. It looks to be in good condition otherwise.
Got it home, confirmed it had spark. Figured out which direction turns the choke on (the label for the choke lever is gone), squirted a bit of gas in the spark plug hole, and gave it it a pull. It fired right up It will run fine with the choke set just right (almost-fully on). Turn the choke off, and it dies. Turn it on fully, and it will falter & run rich (or stall). The Hi mixture screw is out as far as the adjustment caps allow.
So I think it will need a carb cleaning/rebuild. But hopefully that will get it back in good shape. It is S/N 812xxx, so, per the parts manual, it has Zama carb C1U-K52. It looks like the diaphragm/rebuild kit is Echo 12530013310. I'm hoping I can turn it into a nice, reliable machine.
Got it home, confirmed it had spark. Figured out which direction turns the choke on (the label for the choke lever is gone), squirted a bit of gas in the spark plug hole, and gave it it a pull. It fired right up It will run fine with the choke set just right (almost-fully on). Turn the choke off, and it dies. Turn it on fully, and it will falter & run rich (or stall). The Hi mixture screw is out as far as the adjustment caps allow.
So I think it will need a carb cleaning/rebuild. But hopefully that will get it back in good shape. It is S/N 812xxx, so, per the parts manual, it has Zama carb C1U-K52. It looks like the diaphragm/rebuild kit is Echo 12530013310. I'm hoping I can turn it into a nice, reliable machine.