GS 650G Coil

[Pureformance]

I need to replace the coils on my 81 GS650, and i see there are a few choices:
Z1 http://www.z1enterprises.com/catalog...650GX-1981-IG0 and cycle-re-cycle http://crc2onlinecatalog.com/Index_Main_Frame.htm

Just wondering if the universal coils on cycle-re will work just like the old stock set did? Or what the advantage the 40$ more set of dyna's would be.

[tom203]

I need to replace the coils on my 81 GS650, and i see there are a few choices:
Z1 http://www.z1enterprises.com/catalog...650GX-1981-IG0 and cycle-re-cycle http://crc2onlinecatalog.com/Index_Main_Frame.htm

Just wondering if the universal coils on cycle-re will work just like the old stock set did? Or what the advantage the 40$ more set of dyna's would be.

Both coils went bad at same time and you determined this how?

[Pureformance]

No, one went bad and i figured why not replace both? Determined by using a multimeter and the fact cylinders 1&4 both arent firing...

[tom203]

No, one went bad and i figured why not replace both? Determined by using a multimeter and the fact cylinders 1&4 both arent firing...

Did you switch coil positions and find that the problem moved with the suspect coil ? it never hurts to be sure ! In any event, make sure replacement coils have same resistance. My stock coils are 4 ohm

[hikermikem]

Both the dyna & the universal coils wil work...

The green dyna coils are 3 ohm which is what most members use here, they will support a dyna S ignition in the event you want/need to replace an ignitor.

Those universal coils are most likely 5 ohm coils (same as stock) and will not work with a dyna S ignition.

Some here have also started to use the dyna 3 ohm mini-coils too...

[Pureformance]

Bah, Tom i wish i had seen your suggestion to switch the coils. I had found that the coil itself was receiving power, but not being delivered to the plugs. Also i noticed the post on the coil itself was extremely loose. So i ordered the universal ones and put them on, no change. Is my next step the ignition?

[Nessism]

Those universal coils would work fine. Dyna S works fine with stock coils too if you ever find the need to change.

[Pureformance]

Those universal coils would work fine. Dyna S works fine with stock coils too if you ever find the need to change.

Good to hear it'll work with the dyna ignition, if thats what i'm going to need. : /

[Pureformance]

is there a test I can do to see if the ignition is indeed the problem?

[Nessism]

Yes! Ignition system tests are detailed in the factory service manual.

[Pureformance]

ok excellent. ill check it out when I'm home. Anything else I should check that could be causing the problem?

[Pureformance]

I'm not sure if i understood the testing instructions correctly, but i removed spark plugs 1&2. Rested them against the cylinder head (connected to the plug wires still). Disconnected the green/blue wire plug coming from the ignition. Hooked my tester up + to blue - to green and saw no spark on the cylinder as i connected and removed the tester.
I want to confirm that my tester actually has the correct setting to test the ignition and i had it selected. (not to keen on all the different settings.) So if someone could tell me which setting so i know for sure, that would be great. I was using this multimeter: