I have an Echo ED-2000 engine drill that's powered by a small 2-stroke engine. I obtained it (free from a friend) as a formerly good runner that sat on a garage shelf for 10 years. After verifying that it has good compression and spark I gave it new fuel lines, fuel filter, and a carb kit along with an air filter and missing filter cover. It will fire and run like like a champ at WOT, but as soon as I let it settle down to idle it slows and dies after a second or two. Adjusting what on a saw would be the LA screw makes little to no difference. This little joker is fitted with a rotary valve carb which is completely new to me. No H or L screws . . . so what in the name of all things two stroke do I need to do to dial it in?????? I feel so helpless.....
I don't think your problem is specific to rotary barrel type carbs. But it sounds to me like the L circuit is still restricted.
I also wouldn't spend much more time/money on it. http://www.ebay.com/itm/Walbro-New-...350?pt=LH_DefaultDomain_0&hash=item233ff0ed46
Thanks for the feedback. It actually has the WYL-23 carb on it which I couldn't find available anywhere for less than $40 to my door. Sadly, I would probably just sell it for parts or repair to recoup my money before I'd spend another $40 on it. I'm close to $60 in right now and it's only worth about $100. I have no need for it, so I was just going to get it running correctly and flip it... Oh well, can't win 'em all!
I have a rule, if the carburetor is under $50, I generally won't bother with cleaning/rebuilding on a customer machine. I'm just not doing either one of us any favors by wasting a kit, and the time to clean it before possibly winding up having to replace it anyways. I'll tinker with something on my dime (as you are doing) every once in awhile tho. A can of carburetor dip is handy for problem carbs, as long as they don't have plastic parts that cannot be removed. Others have had good luck with small, cheap US cleaners meant for jewelry.
Guilty as charged . . . I have a small US cleaner that I normally use, but just so happened to have skipped that step this time around since I was in a hurry. Like the saying goes, "If you have time to do it twice you have time to do it right." While your logic on rebuild vs. replace is definitely sound, I just hate throwing carbs away and wondering if all it needed was a kit...
As somebody who likes to fix things, I struggle with that too. Just not worth me having to eat the cost of the kit and lost time for the times that I don't get lucky. Most times that a carb responds to a simple cleaning, it actually doesn't really need a kit. Plenty of machines have roared back to life with just a quick spray cleaning, verify the jets are clear, and re-assemble.
Amen, cleaning is normally my first step too, but this carb was full of gooey crap from sitting for years and the diaphragms looked very rough, so I just went straight to the kit. Just in case you're counting, I've now admitted to breaking two cardinal rules - I didn't try to run it after a cleaning first and I skipped the US bath. I feel like I'm at confession. I think those are my only two mistakes though!
