After market coils

[gsryder]

Looking at after market coils for 1981 GS750.

In the manual it says that stock the coils are approx. 3 - 5 ohms (primary)

So if you were wanting to upgrade to say Dyna coils for example would you get 3ohm or 5ohm?

Do I want greater resistance or less?

Which is better?

Thanks.

[almarconi]

For your bike you want the 3 ohm dyna green coils or accel super coils. The 5ohm coils are for a bike with a points type ignition. It is important to buy coils with the proper resistance otherwise you can damage/burn up your ignitor. If you purchase a used set be sure to check the resistance before installing them on your bike.

[gsryder]

I see lots of sets below 3ohm. Is it bad to go less than 3ohm also.
Sorry for all questions just want to make sure I have all the bases covered.
Thanks

[almarconi]

If you are going to keep the stock ignition then you want the 3 ohm green coils. If you upgrade to the dyna 2000 system you will want to use the grey 2.2 ohm coils. I believe the dyna s system uses the green 3 ohm coils.