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User Name Thread Name Subject Posted
GUEST,BobL BS: Jump starting an engine (53* d) RE: BS: Jump starting an engine 16 Feb 12


You got two different possibilities here. If you try jumpering a 12v battery to a 6v one, I'd expect the 6v one to fry, PDQ. HOWEVER, if you (briefly) hook the 12v battery direct to the 6v starter motor, leaving the 6v battery to provide the spark, you may get away with it.

This needs you to access the contacts on the starter motor switch, not normally a problem under a car hood but may not be so easy in a jennie set.

Oh, incidentally the starter motor is probably not polarity sensitive. Just make sure that those different polarities don't ever get connected to each other...


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