18 HP L-Head (2 cyl flat head) no spark
My 1993 Craftsman GT6000 has a B&S 18 HP twin cylinder opposed, L head, that appears to have no spark. I pulled both plugs to help the low battery condition (not parked near the garage) and was able to turn the engine over at a reasonable clip.. I could clearly see the spark plug and in the open air with a wire from the threads to ground. I assume that if working correctly the spark would be very strong as it was trying to jump the 0.030" gap in open air (no compression).
I will dig out the Sears owner manual, but thought I'd bounce my test off his forum for suggestions and comments.
I believe this engine uses a magneto, no points or condenser, but this I need to check. Main need I have is what is the next step in checking the ignition? Trace the high voltage leads back to the source of high voltage? The wires look pretty good, but being 17 years old I suppose one could be leaking the HV to ground, next test is to test the other side, if both are out I'd say the problem is something common to the two wires, not the wires themselves. ... just thinking out loud