ok, for those interested i always refer to the service manual when something is in question. i can't post the wiring diagram, but here is my translation.
when bike is running...
-red wire is ALWAYS hot. it goes to condenser(capacitor) and to ignition switch.
-blk wire is hot if ignition switch is in ON position (red & blk closed... grn & blk/whi open) and any circuit with blk wire is then hot (lights & brake lts, cooling fan motor, coolant temp indicator, carburetor heater).
-grn wire is common ground.
you can keep motor running without closing red to blk if you DO NOT have an ignition switch but the things mentioned above will not work.
the ignition coil, tps, ignition pulse generator, ect, and icm are all wired seperate from the ignition switch and will work without one.
the only reason the motor turns off when you turn OFF the ignition switch is because the grn & blk/whi wires become closed thus grounding your ign coil circuit. just like using your "kill" switch.
if you stop "kill" your motor but leave your ignition switch ON, the fan may run depending on how much energy is still stored in the condenser as long as the temp of the coolant is high enough.
if you stop your motor using the ignition switch, the fan cannot run.
sorry for jumping the gun in my earlier post about the battery. trx450rlude absolutely correct!