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Old 06-29-2012, 01:12 PM
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j301
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Default Engine ID help

I did as much research as I could and am still stumped so I would like to ask for some help in I.D.ing this motor I came across.

From what I found, the jug was used on everything from a 40cc Jonsered BR 420 chainsaw (Swedish I think?) to one of the Sachs engines (4.2 from what I found), to a 3W35, which is my best guess at what this motor might be. I even found the ID # on a German board that talked, from what I could gather, about it belonging to a 26 or 28cc something or other. That # is 1211001 927, preceded by ++1A.

The carb is a Walbro marked 21-245. At fist I was told it was a G38, so that carb made sense, even though those #'s don't show up on any Walbro charts, I was able to narrow it down to an HDA 48. The more I looked at it, the more I disbelieve its anything Zenoah.

Its obvious that it has been converted to EI, and the module is an older (almost military looking paint job) CH ignition unit. I rebuilt the carb and am able to get the idle down to 1300 and it maxes out at about 6500 on a zinger 18/10, which is the rpm a 3W35 should max at but with a 20/10 from what I read.
Anyone recognize this thing, and if so, what should it run? It also seems to spit fuel out of the front of the carb at full throttle (sustained, not just at run-up).
Thanks for the help,
Jim.
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