Clemmons04
CB750 Member
I'm working on an 81 750K and trying to convert over to the HEI setup and I'm having a bit of trouble.
Another member here AMC49 has mentioned doing this multiple times but has never elaborated on the install. I DM him but he doesn't seem active any longer. If anyone on here has done this conversion and know what my voltages are supposed to be and where I'd love to hear from you.
I've set it up like in this link but I'm not getting any spark. I got just under 12v going to both wires on the coils and it doesn't seem to be switching to ground like it should. I've checked my ohms on the coils and they are in spec. The HEI units are suspects because as soon as I connect the coils the HEI terminals all have + power. Are my units faulty since they are cheapies from Amazon or am I doing something wrong? I was ok with them working and possibly burning in short order. As long as it gave me a spark so I knew I was on the right track. I installed the resistor circuit as well. I'm thinking on going to the junkyard and getting genuine GM units if that will help otherwise I was going to run the new dyna 2000 which I've read can be troublesome with the pickups in the hot oil.
I'm wanting to do some distance runs and if there are issues I could go to any parts store for repairs, that's what started this whole venture.
Let me know what you think or advise towards.
Thanks
Jeff
Another member here AMC49 has mentioned doing this multiple times but has never elaborated on the install. I DM him but he doesn't seem active any longer. If anyone on here has done this conversion and know what my voltages are supposed to be and where I'd love to hear from you.
I've set it up like in this link but I'm not getting any spark. I got just under 12v going to both wires on the coils and it doesn't seem to be switching to ground like it should. I've checked my ohms on the coils and they are in spec. The HEI units are suspects because as soon as I connect the coils the HEI terminals all have + power. Are my units faulty since they are cheapies from Amazon or am I doing something wrong? I was ok with them working and possibly burning in short order. As long as it gave me a spark so I knew I was on the right track. I installed the resistor circuit as well. I'm thinking on going to the junkyard and getting genuine GM units if that will help otherwise I was going to run the new dyna 2000 which I've read can be troublesome with the pickups in the hot oil.
I'm wanting to do some distance runs and if there are issues I could go to any parts store for repairs, that's what started this whole venture.
Let me know what you think or advise towards.
Thanks
Jeff