"Tom... No, with the red plug
"Tom... No, with the red plug disconnected, you have eliminated everything from that red plug forward such as the ign switch, kill switch, all wiring, etc etc.
On the starboard (right) side of the engine, look at the shift linkage that goes under the carb area. You'll see a shift cutout switch there. Follow the black wire that has a yellow stripe (black/yellow) from that switch back to a rubber plug. Pulling that plug apart (disconnecting it) disables that switch. The purpose of the switch is to momentary knock out the spark on three (3) cylinders in order to shift in and out of gear easily. Keep in mind that this switch only affects three cylinders and shouldn't be able to knock out all six cylinders but I thought you might want to know how to test that switch.
At the powerpack, there is also a black/yellow wire that leads to a rubber plug that you can disconnect. When you disconnect this plug (black/yellow) it eliminates the engine wiring harness. If you have ignition with this one disconnected, that means there's a problem with the engine wiring harness... and if so, it's usually in that red plug.
If your engine has more than one black/yellow wire/plug and your unsure which leads to where, unplug them all as the purpose of those black/yellow wires is to kill the ignition when you turn the key off... and if there's a short in that engine wiring harness, any of those plugs might lead you to the problem.
Look under the flywheel to see if that stator is melting down. There are large black coils there which are the beginning of the ignition system and their purpose is to supply AC voltage to the powerpack. If they're melting, cracked, etc, it would result in weak ignition. However if they have reached a worse scenerio point, there would be no ignition. While you're looking in that area, check to make sure that none of the flywheel magnets have come loose and have slid together.
If through all this, you still have no spark, and all looks well under the flywheel, it would be my guess that the pack has failed... but of course without actually being there, it is just that... a guess. Keep me informed.
Joe
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