Originally Posted by gonecheenin
According to the wiring schematic I just found in the "How to" section - all I need for this system to work is ground to the white wire, voltage & switching voltage to the brown/white & black/red wires and the plugs with a good ground.
Everything else is either lighting/power voltage or shutdown grounds.
That's extremely helpfull. List I know I have a limited list.
I wonder if I could apply a constant battery 12v to the exciter coil side of the CDI to eliminate that circuit as an issue?
Is it possible I should not have resistor caps on the plugs? The schematic shows direct connections & I'd swear the ones on my sled look like resistor caps. I'll check for continuity tonight.
apply 12v D/C to anything!!!
The magneto coils generate A/C voltages.
Go back to your original CDI. The CDI box is specific to the engine and the timing curve is built into it. If you are using the wrong CDI there is a possibility the timing curve is incorrect and could possibly cause engine damage.
Disconnect the single blk. wire at the CDI which will isolate it from the kill circuit in the rest of the sled. See if that has any effect in the off chance there is either a short in the harness or a defective switch in the circuit.
Test your spark plug caps individually with an ohmmeter. Specified impedence is between 3.7 and 6.3 K. If you get readings outside these numbers replace them as they are very inexpensive.
The way you say the engine was running and then quit seems odd ........
I would not overlook the basics , test compression, also remove the carbs and while slowly rotating the engine by hand have a look at the pistons to make sure you see no damage there.