I've tried 2 of these from NAPA for a Briggs edger model 60102-0284-99 engine (1960's?) and it doesn't work. Tried everything.. reversing leads, even putting a 1UF capacitor to ground from the positive connector. Nothing! Ordered a new coil $30 from Amazon.com and will try it again thinking maybe my coil was weak. (Ohmed out primary and secondary, (primary 0, secondary 3k ohms). It works fine with the points...nice blueish-white spark but was getting oil from the plunger and wouldn't fire the next time I wanted to use it..therefore convert to electronic igniton to solve the oily points problem. ( I rebuilt the engine..honed it, new rings, new breather, new plunger..etc.. but still oily points. I took back the first module to NAPA thinking it was bad and got another. Still nothing. I get 3k ohms from + to - or - to + and infinity from either + or - leads to the case or ground. Seems like 3k ohms is way too much resistance to fire the primary side of the coil. I've spent hours searching the internet for a solution or someone who's had the same problem...but not much luck. Might try the Atom Industry AM205 from BantaSaw.com for $18.83 +S-H if the NAPA # 7-01749 still doesn't fire with the new replacement coil (Briggs 298502). Engine runs too good to scrap it...plagued by the oily points problem!
If anyone has any ideas...let me know.MrBlueOcean@verizon.net