GBertolet
Well-Known OPE Member

I was given a roto tiller with a B&S engine. I have no spark. I replaced the points & condenser, still no spark. It's an old model engine, a 81702 9446-13, SN 5902180. I have the coil out, and want to test it. There are two coils listed for this engine. I believe I have the 291617 coil. Discontinued, NLA, of course. Anyhow, how do I test this thing? What am I to see? I have continuity between the two small wires, and that's it. No continuity, between any other wires, including the high voltage and ground.
The last time this engine has ran, was 15 years ago. I worked fine then. I have located a NOS coil, which is a bit pricey, so I want to be sure, mine's actually bad, before I buy it. If the methodolgy of dating is the same between codes and serial numbers, this would make this a 1959 engine.

The last time this engine has ran, was 15 years ago. I worked fine then. I have located a NOS coil, which is a bit pricey, so I want to be sure, mine's actually bad, before I buy it. If the methodolgy of dating is the same between codes and serial numbers, this would make this a 1959 engine.


