kolher 440 no spark

[insaecula]

i picked up a couple hustlers and took two to make one. had to do some re-wiring as it was pretty crappy but basically there. there were three black wires coming from the motor, two of which werent hooked up to anything, i assumed they were grounds and wired them as such. i tried to fire up the engine today and have no spark, was told it was running when i got it but never actually heard it run so who knows? but either way, any suggestions? anybody have a wiring diagram for the ignition?
thanks

[ARGOJIM]

Remove the assumptions, may be coil grounds.

[TheSilverBuick]

I've been using this manual as a guide. Section 4 goes over how the coils are wired, and some troubleshooting tests.

http://www.vintagesnow.com/Engine_manuals_files/TwoStrokeSM.pdf

[insaecula]

thanks for the help. I blew it all apart and figured two of the 3 black wires were ground wires to the points which were originally used to kill spark and shut the motor down, 3rd black wire was ground for the magneto frame.

[TheSilverBuick]

I'll be looking at that here soon. I finally got mine started up tonight and it turned out the "ON/OFF" switch on the dash isn't connected to anything! D'oh! I ended up pulling the plug wires off the spark plugs to shut it down, and now have to figure out what wires to use to wired up the switch.