First, I'd like to clarify something. Yes, you can jump start from a car, but DO NOT have the car running. This will fry things on your bike. With the car off, the bike will "draw" exactly what it needs, no more,no less. If the car is on, the 100+amp alternator will push enough current into the bike to fry many things- rectifier, wiring, even the alternator windings.
Are you drunk?
You haven't clarified anything, only added heresay and contrived a fiction.
These statements have no basis in reality, electrical theory, or even practical reasoning.
The car alternator can make power available, but it can't push anything into the bike it does not demand. Current flow is determined by the load requirement, not source potential or capability. You can't make something draw 100 amps that normally draws 10 unless you significantly raise the offered voltage potential. Learn basic ohm's law; Current equals voltage divided by resistance.
If your contrivance were true, the battery is capable of delivering at least 600 amps (see CCA rating). In fact, they can deliver over 1000 amps for short periods of time, which is more than 10 times the capability of a car alternator.
If your fiction became reality what would stop the alternator from delivering 100 amps to the cars own headlights and melt them, or any of the other electrical devices in the car's electrical system?
A car's alternator system provides the very same peak voltage as the MC charging system produces, 14.5V max. The bikes load resistance does not change when you connect jumper cables from a car regardless of whether the car is "ON" or not. If you electric start the MC, then the starter motor will draw 100-150 amps from the car's electrical system, either the battery or the alternator can make this power available. Neither will "push" power into a circuit that is not demanding it.
Jeesh. Where does such odd mysticism originate, and why does it fester so?
