Mac3687
CB750 Member
Like the title says, I just bought two standard coils, these ones to be precise:
http://www.cb750supply.com/parts/480/17-6823.jpg
My bike is a '76 750K, completely stock, only 8K original miles, cleaned up inside and out from top to bottom. I was having issues that pointed to bad coils, and these seemed more practical than the OEM ones. My problem lies in how to properly hook them up, since their wire colors aren't the same as the OEM coils. Each new coil has a black/white wire and then a blue wire, and for both of them I connected the black/white wire to the original black/white wire coming from the wiring harness. It then looks like the other wire (blue) from the 1-4 cylinder coil should go to the blue 1-4 point wire, and the blue wire from cylinder 2-3 coil should go to the yellow 2-3 point wire. I would then assume that just like the OEM coils, if I'm sitting on the bike looking down, the left wire on coil 1-4 goes to spark plug 1, and the right wire goes to spark plug 4. On coil 2-3, the left wire would go to spark plug 2, and the right wire would go to spark plug 3. I just want to make sure I have it wired correct before I proceed, as ignition systems are by no means my forte...
I appreciate any input you guys may have...
-Mike
http://www.cb750supply.com/parts/480/17-6823.jpg
My bike is a '76 750K, completely stock, only 8K original miles, cleaned up inside and out from top to bottom. I was having issues that pointed to bad coils, and these seemed more practical than the OEM ones. My problem lies in how to properly hook them up, since their wire colors aren't the same as the OEM coils. Each new coil has a black/white wire and then a blue wire, and for both of them I connected the black/white wire to the original black/white wire coming from the wiring harness. It then looks like the other wire (blue) from the 1-4 cylinder coil should go to the blue 1-4 point wire, and the blue wire from cylinder 2-3 coil should go to the yellow 2-3 point wire. I would then assume that just like the OEM coils, if I'm sitting on the bike looking down, the left wire on coil 1-4 goes to spark plug 1, and the right wire goes to spark plug 4. On coil 2-3, the left wire would go to spark plug 2, and the right wire would go to spark plug 3. I just want to make sure I have it wired correct before I proceed, as ignition systems are by no means my forte...
I appreciate any input you guys may have...
-Mike