Yamahacam Posted January 18, 2014 Share #1 Posted January 18, 2014 Can anyone help no to find the ballast resistor on my 77 240k, I think I found it on the wiring diagram but not on the car. Link to comment https://www.classiczcars.com/topic/48369-ballast-resistor/ Share on other sites More sharing options...
Mr Camouflage Posted January 18, 2014 Share #2 Posted January 18, 2014 Can anyone help no to find the ballast resistor on my 77 240k, I think I found it on the wiring diagram but not on the car.Apparently there is a wire that acts as the ballast resistor.See aarc240's post about half way down this page:http://www.classiczcars.com/forums/open-240k-discussion/15159-electronic-igniton-240k.html#post173861 Link to comment https://www.classiczcars.com/topic/48369-ballast-resistor/#findComment-439887 Share on other sites More sharing options...
Yamahacam Posted January 19, 2014 Author Share #3 Posted January 19, 2014 (edited) Found the resistor wire I was looking for. It runs back from the +ve connector on the coil along side the black/red wire and splices into the black/white wire up behind the lh headlight. Black/red must be the start power supply (12v) and the black/white wire supplys ign on power(low voltage) through the ballast resistor wire. I had trouble reving past 3500rpm after installing the pertronix ign. I simply took power from the black/whiote wire closer to the round connector near the coil and hey presto no rev problems and no tacho issues. thanks mr camouflage for the help. Edited January 19, 2014 by Yamahacam forgot thankyou Link to comment https://www.classiczcars.com/topic/48369-ballast-resistor/#findComment-439908 Share on other sites More sharing options...
240k Style Posted January 19, 2014 Share #4 Posted January 19, 2014 Where's the you tube video of it running well??? Link to comment https://www.classiczcars.com/topic/48369-ballast-resistor/#findComment-439916 Share on other sites More sharing options...
Yamahacam Posted January 19, 2014 Author Share #5 Posted January 19, 2014 Youtube may be a bit beyond me. Might try soon. Link to comment https://www.classiczcars.com/topic/48369-ballast-resistor/#findComment-439918 Share on other sites More sharing options...
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