Hi there,
I have a 1971 RS thats driving me crazy. It turns over, wont START, not getting any spark to the plugs. Replaced cap, rotor, coil and points condensor and it still isnt working. Getting 12 volts @ coil and cap, 7-9 while cranking, but still nothing to wires.

Tried doing a jumper wire direct from battery to coil and a ground wire from the coil, still nothing.

Can anyone help??!

Thanks in advance!

 

I am not sure what that means. "Cranks" and "turns over" mean the same thing in my book

Is your coil wire hot?do you have a dewell meter? Are you sure the points are gapped correctly? Remember your distrubter gives the coil ground. If you have power and ground connecting and disconnecting(points opening and closing) to the coil you will get spark out of a working coil. Either you got a bad coil or your point and condensor are installed wrong. If you left that 12 volt jumper wire connected for more then 30 seconds you could have fried your new points. Its a pretty simple circuit.

The coil get about 9-10 volts with the key on. The points give it the ground. A coil fires when the ground is taken away. Just running a ground wire would make the circuit not work. It needs on and off of the ground to fire the coil.

 

Sorry, fingers going faster than the brain...

It cranks but won't start. LOL

 

Gorn may be onto it,sounds like the points aren't closing all the way or you have your timing way way off.
If it was timing off or the dist in wrong I would expect at least a backfire.
Did you put the dist in with the rotor pointing to #1 on the compression stroke?
Plug wires in the correct order 18436572 clockwise?
Neg side of coil to points?