Coils- where or how 2 find out what ohm they are

83 kz550m1, thought I could look on them n find out what ohm they were. I was wrong, only thing I could find was -ZC006-TR12v- any help would be great.

Most bike coils are rated between 2.2 and 3.0 OHMS. Anything less may have the coils overheating. Bikes have used 4 ohm coils, but the spark energy is reduced.

Kinda like a tightrope to walk between endurance for the long haul or really short lived performance.

paradon wrote:

83 kz550m1, thought I could look on them n find out what ohm they were. I was wrong, only thing I could find was -ZC006-TR12v- any help would be great.

Is it the stock ignition with igniter, and perhaps the stock ignition coils, or possibly replaced with a different ignition such as Dyna-S which doesn't use the igniter?

Many conversions to Dyna-S also use the 3 ohm Dyna green coils (the majority I believe ), but some may prefer the Dyna 4 ohm coils.

May use ohmmeter to measure resistence of a coil, by reading across the coil's primary winding terminals.

Good Luck!

Everythings stock on the motor, for now. Figured just up grade now n then when I do get the dyna ingition I will b ready. $ workn on that short budget. Sounds like 3 would b ok 2 go with?

Here's a link to a lower priced 4 ohm coil from Z1E.

Haven't tried them, but see favorable reports, and thinking some very knowledgeable folks prefer 4 ohm over 3 ohm ignition coils with Dyna-S ignition.

Click here >> Lower priced 4 ohm coil

Am well-satisfied with the green Dyna 3 ohm coils and Dyna-S ignitions. Could be wrong, but thinking Dyna recommends the green 3 ohm coils with the Dyna-S ignition, as opposed to the Dyna 4 ohm coil. Other members will likely have better information about this.

Good Luck!

On a points ignition with no external ballast resitor, I would not go lower than four Ohm coil. With the kawi electronic igniter type ignition, they run lower resistance coils like about three ohms. With aftermarket like Dyna, I think they also wun lower resistance coils.

You can measure the coil resistance if you have a GOOD ohm meter with a low range like 200 Ohms or less, and you "zero out" the lead resistance to get an accurate reading.

How will I know if I hav the electronic type? I m assumen I have the points. So I could go with the ones pasted up n another post? Lots cheaper, witch is good till I can up grade everything at once

If you will someday use a Dyna S, you should get 3 ohm coils. They should still work with your stock ignition (which used coils in the 2.4 to 2.6 ohm range).