I have a G62 with magneto ignition. Took it to field for first time and was very hard to start. But did run, seemingly normal with what little experience I have. However, the ignition cutoff switches I installed did not stop the engine. The manual states to ground the black lead to the engine body to kill the engine, however, the black lead itself is already grounded to the body when I use an ohmmeter on it. So switches couldn't ground it any better obviously. I got another source coil from Horizon and it does the same thing. What am I missing? Should the black lead show a short to the engine body without any other connection? If so, then why would a switch that grounds it actually work? And even more confusing, how did I get it running (although it took 15 tries with a megatron)? I am really confused and need some help, this is my first gasser.
Dave

Dave, you ground the RED wire to kill the engine. I swapped out the mag for electronic and it runs smoother and starts a lot easy.

Cheers

The ghost, whose workbench are you using as a test stand? Did you have to weigh it down for stability? Thanks, Dan.

Dan, They are just cheep ones that I got form a hardware chain down here called Bunnings. They are their own brand and only $19 on sale.
It is stable as long as you don't use to much power, I just hold it with my foot on the lower brace, Have used the same type of setup for years for running in and retesting engines after work.

Cheers

Sorry, guys, the RED WIRE connect ONLY to the spark coil...ONLY..The black wiere is not normally grounded...Grounding the red will WILL kill the engine,
The black wire exists ONLY to use as a kill wire..Grounding the black wire grounds
the source coil, killing the spark....
Be ssure the top screw on the spark coil is tight, it's the ground for that one...
Try disconnecting all wires except the red source to spark coil wires...Be sure the push connectors are tight...Coil failure on any Zenoah is rare,

Instructions?[&:]