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Look carefully at the ignition switch in the diagram...the module red wire is powered during 'run', the white wire is not. The white wire is powered during 'start', the red wire is not.
The white wire is actually an electronic spark retard system. You can ignore the white wire and power the red in 'start' AND 'run' and the engine will run fine. You may have a start problem, though, if you have a lot of timing advance.
Make sense??
The black/green wire on the module is the ground wire. No other wire goes to ground.
The resistor is a ballast resistor for the coil, it supplies full battery voltage to the coil during start and then reduces the voltage during run to protect the coil and module from high current draw.
As for your hot/cold description, that would take some hands-on troubleshooting.
Ed
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