Testing coil?

I have 4 ohms on the primary winding but non on the secondary, just to make sure im doing it right all you have to do is hook the positive lead to on spark plug cap and the negative to the other plug cap?

Pop147 wrote: I have 4 ohms on the primary winding but non on the secondary, just to make sure im doing it right all you have to do is hook the positive lead to on spark plug cap and the negative to the other plug cap?

That should read the secondary coil winding. It might be out of meter range on a cheap meter. It could be something like 10k Ohms?

up until today i had spark but, now non thats why im testing the coil. I dont know how high the ohms meter goes that i have any ideas on how the spark issue,any common culprits?

Primary(small wires) side of the coils will read between 1.8 to 3.0 ohms.

Secondary(sparkplug wire ports)side of the coil will read between 10.4K to 15.6K ohms. These ports are wired together.

The sparkplug caps should read 5K OHMS(5000), any higher, or a reading of infinity means new caps should be ordered.

To stress the ignition coils, take a hair dryer, heat the coils and see if the ohm readings change from cold to hot . If they do, it’s time to buy new coils.

Pop147 wrote: up until today i had spark but, now non thats why im testing the coil. I dont know how high the ohms meter goes that i have any ideas on how the spark issue,any common culprits?

Old coils.