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81 GS650E coils

  • Thread starter Thread starter Jeff G
  • Start date Start date
J

Jeff G

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So after looking around and searching for about two days, I am having trouble finding whether there is a Dyna S ignition compatible with my bike or whether I can just use 3.0 ohm coils on my stock ignition system.

Thank you
-Jeff G
 
Z1 used to list the dyna s ignition for the 650, but now I can't find it . Bunch of folks have gone this route since this model had mechanical advancer which the dyna needs. The stock coils are 4 ohm, your 3 ohm coils will make the stock ignitor work a little harder- not sure if this is a problem. What was wrong with the stock coils?
 
3-4-5 ohm coils work -if you use dyna coils use dyna wires and non resistor plugs- dyna S works single magnet trigger on your stock advancer. use a 4 post relay and 10 GA wire from battery to the coils - run dyna power from a coil positive.

the dynatek DS3-2 fits 550-650-750-850-1000-1100-1150 -- just set timing on both 1-4 /AND/ 2-3 before getting frustrated - sometimes they are a few degrees off on backing plate from the mfg..
 
The boot on cylinder #1 spark plug has come detached, and likes to lose contact mid left turn. I was just looking into either finding replacement boots with very little luck. I want to eventually go with new coil and I hear if you run a .75-1.00 ohm balest resister on the constant it won't make the bike work as hard. For right now though if I could just fix the boot I would be happy with that.
 
So I just found the how to in replacing the spark plug boots, which is awesome. Just wondering what the boot sizes are now.
 
Reseated boot on cylinder #1 changed while changing spark plugs and noticed the had the hot weather d9ea plug in there would this make much of a difference when starting?

Also thank you all for you help
 
That spark plug is not your problem. So you trimmed back each plug wire about 1/4 inch and reinstalled boots (or just get new ones about $5 each) ? Maybe one plug wire is detached/loose at that coil and fooling you.
i recall seeing a set of coils off a 650 on eBay for about $25 or so recently -these coils are durable, but maybe yours got manhandled.
 
Yes I cut about 1/4 inch off the wire since the boot on there was new, still had the receipt from the owner. I just changed the spark plugs cause i like to know how old they are.
Thank you
 
I have the stock ignition in place with the dyna 3.0 ohm coils and and the diy ignitor and the bike ran fantasticly until i took her off the road for the season.
 
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