HRLSpeak for I don't know. Hope your younger brother is okay. Meanwhile, seriously.. you DONT KNOW! One wire to the coil, 12 volt battery, but SIX VOLT starter. No wiring to bypass the resistor. You can speculate that ohms law would prove that you are putting a similar voltage to the coil as your bypass system would on startup since its twice the voltage. But YOU can be obtuse all day and guess what? The system works perfectly! Everyone with a 6 volt starter on a 12 volt system knows it. There are lots of people here with that system. Why am I always the one who gets dumped on? I think its a badge of honor.
