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6 volt or 12 volt coil

K

keith1955

New User
Im getting a very weak spark on my jubilee. Im going to replace the coil but I'm not sure if it is 6 volt or 12. It has been converted to 12 volts but has a resister inline to the wire going to the coil. The coil on it has is a metal case and is a Motorcraft. Could this be the original 6 volt coil ?
Thanks
 
If it has a resistor in line then it is a 6 volt coil but most of the time the reason you have weak spark is not the coil but cased by a problem with the point either being dirty or gaped wrong
 
(quoted from post at 19:41:03 04/23/16) Im getting a very weak spark on my jubilee. Im going to replace the coil but I'm not sure if it is 6 volt or 12. It has been converted to 12 volts but has a resister inline to the wire going to the coil. The coil on it has is a metal case and is a Motorcraft. Could this be the original 6 volt coil ?
Thanks
Click to expand...

You want about 3.25 total ohms resistance with your resistor and coil added together . If you get a coil with 3.25 ohms resistance then that is all you need . "No Resistor Needed" Napa ic14 or others .

http://www.ebay.com/itm/NAPA-ECHLIN...940062?hash=item3cfc0fed9e:g:irEAAOSw~OdVeuPg
 
(quoted from post at 20:17:19 04/23/16) If it has a resistor in line then it is a 6 volt coil but most of the time the reason you have weak spark is not the coil but cased by a problem with the point either being dirty or gaped wrong
Click to expand...


The "Flame Thrower" 12v coils come in .32 , .6 , 1.5 , 3.0 ohms resistance . Some 12v motorcraft coils need an inline resistor and some don't .
 
efore you shotgun parts fix it.. why not check to see if you just have a bad connection.

if the coil does turn out to be bad. ditch the resistor and just get a napa ic14sb coil... works on 12v, no extra wire connections to a resistor..
 
(quoted from post at 14:09:23 04/25/16) efore you shotgun parts fix it.. why not check to see if you just have a bad connection.

if the coil does turn out to be bad. ditch the resistor and just get a napa ic14sb coil... works on 12v, no extra wire connections to a resistor..
Click to expand...

Thanks everyone. the coil turned out to be bad and it was a 12 volt.
 
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