Dyna Alternative?


Information and questions on GL1000 Goldwings (1975-1979)
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spookytooth
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Dyna Alternative?

Post by spookytooth »



I've got a ten year old Dyna s system on the Honduh and over the last few weeks it's developed an issue of dropping two cylinders after about 5 minutes on the road. They pop back in and out but once it's warmed up it's completely unreliable. I checked everything (even replaced the coils) EXCEPT the Dyna because they are supposedly so bulletproof... Reading here I see my problem, while not common... does happen. I seriously DON'T want to go back to points so... Do you have any REASONABLY PRICED Dyna alternatives?


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Maz
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Re: Dyna Alternative?

Post by Maz »

spookytooth wrote: Wed Jul 06, 2022 6:31 pm I've got a ten year old Dyna s system on the Honduh and over the last few weeks it's developed an issue of dropping two cylinders after about 5 minutes on the road. They pop back in and out but once it's warmed up it's completely unreliable. I checked everything (even replaced the coils) EXCEPT the Dyna because they are supposedly so bulletproof... Reading here I see my problem, while not common... does happen. I seriously DON'T want to go back to points so... Do you have any REASONABLY PRICED Dyna alternatives?
I had Dyna on my '75 when I purchased it. For the first year of my ownership it would lose spark to 2 cylinders regularly. The only way to get the spark back was to let the whole engine cool down or, if I still had a few miles to go to get home, just remove the 'points' cover. It would run happily all day like that!
Why would you not go back to points? I did, 5 years ago. Never had a problem since. It is, after all, how these bikes were designed to work.
Maz
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joecoolsuncle
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Re: Dyna Alternative?

Post by joecoolsuncle »

on hd bikes, the dyna and other pickups would overheat and give issues. the trick was to shim the ignition cover to allow a little air to cool. a couple washers under the cover (and over the screws) was all it would take.
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Maz
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Re: Dyna Alternative?

Post by Maz »

joecoolsuncle wrote: Thu Jul 07, 2022 5:38 am on hd bikes, the dyna and other pickups would overheat and give issues. the trick was to shim the ignition cover to allow a little air to cool. a couple washers under the cover (and over the screws) was all it would take.
I did try that in the end and it worked good. Then I thought why the hell should I be compromising the look etc of my bike just to make some faulty aftermarket equipment work like it's supposed to. So I went back to good old reliable points which don't give a damn how hot they get!
Maz
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joecoolsuncle
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Re: Dyna Alternative?

Post by joecoolsuncle »

Maz wrote: Thu Jul 07, 2022 5:48 am
joecoolsuncle wrote: Thu Jul 07, 2022 5:38 am on hd bikes, the dyna and other pickups would overheat and give issues. the trick was to shim the ignition cover to allow a little air to cool. a couple washers under the cover (and over the screws) was all it would take.
I did try that in the end and it worked good. Then I thought why the hell should I be compromising the look etc of my bike just to make some faulty aftermarket equipment work like it's supposed to. So I went back to good old reliable points which don't give a damn how hot they get!
Maz
dyna stuff is actually very good. it was much better than the other stuff. i wouldnt call it faulty if you are subjeting it to more heat (and age) than it was designed for. #1 cause of excessive engine heat is poor tune.
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Maz
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Re: Dyna Alternative?

Post by Maz »

I get what you're saying, but, if the bike is running to spec and timing, mixtures etc are spot on, then, to me, it suggests that the component tolerances of the pick-ups are too tight.
Personally, I find the price of Dyna stuff exorbitant. As I previously said, the bikes were designed to run points and condensers and they work perfectly. I know this may ruffle a few feathers but, apart from not needing to check points occasionally, the benefits from fitting electronic ignition are, to the average motorcyclist, negligible.
Just my personal opinion and I fully accept that others will, rightfully, have their own.
Maz.
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joecoolsuncle
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Re: Dyna Alternative?

Post by joecoolsuncle »

peace! enjoy the ride!
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Re: Dyna Alternative?

Post by cfairweather »

I would buy one of the DS1-1 clones and a set of DC1-1 coil clones to go with it. With this combo you can get rid of the condensers and the ballast resistor. Look on eBay for these two part numbers and you will see them. You can get the DS1-3 for about $50.00 and the coils for about $22.00 each. I wrote an article to help you.
viewtopic.php?p=392267#p392267
joecoolsuncle
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Re: Dyna Alternative?

Post by joecoolsuncle »

cfairweather wrote: Fri Jul 08, 2022 7:33 am I would buy one of the DS1-1 clones and a set of DC1-1 coil clones to go with it. With this combo you can get rid of the condensers and the ballast resistor. Look on eBay for these two part numbers and you will see them. You can get the DS1-3 for about $50.00 and the coils for about $22.00 each. I wrote an article to help you.
viewtopic.php?p=392267#p392267
great post! too bad someone doesnt make something like that for the 1200.
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spookytooth
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Re: Dyna Alternative?

Post by spookytooth »

Ha! I've actually got one on the way. I figured.. for the price it's a no-brainer. How do these compare reliability wise against the Dyna s?
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Re: Dyna Alternative?

Post by cfairweather »

They look exactly like the originals except without the name on it. I think the same manufacturer may be making them but I am not sure. I have used a couple and they work fine.
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spookytooth
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Re: Dyna Alternative?

Post by spookytooth »

The price is certainly right. Just keep a spare one in the glovebox...

https://www.ebay.com/itm/284707653328
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landisr
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Re: Dyna Alternative?

Post by landisr »

joecoolsuncle wrote: Fri Jul 08, 2022 8:36 am
cfairweather wrote: Fri Jul 08, 2022 7:33 am I would buy one of the DS1-1 clones and a set of DC1-1 coil clones to go with it. With this combo you can get rid of the condensers and the ballast resistor. Look on eBay for these two part numbers and you will see them. You can get the DS1-3 for about $50.00 and the coils for about $22.00 each. I wrote an article to help you.
viewtopic.php?p=392267#p392267
great post! too bad someone doesnt make something like that for the 1200.
I thought the 1200s already had electronic ignition. ?
I'm not so sure about an inner child, but I have an inner idiot that surfaces every now and then.. :mrgreen:
joecoolsuncle
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Re: Dyna Alternative?

Post by joecoolsuncle »

landisr wrote: Sun Jul 10, 2022 11:28 am
joecoolsuncle wrote: Fri Jul 08, 2022 8:36 am
cfairweather wrote: Fri Jul 08, 2022 7:33 am I would buy one of the DS1-1 clones and a set of DC1-1 coil clones to go with it. With this combo you can get rid of the condensers and the ballast resistor. Look on eBay for these two part numbers and you will see them. You can get the DS1-3 for about $50.00 and the coils for about $22.00 each. I wrote an article to help you.
viewtopic.php?p=392267#p392267
great post! too bad someone doesnt make something like that for the 1200.
I thought the 1200s already had electronic ignition. ?
they do. and seems to be robust, but i would love to have one that could mount off the end of a cam, or even the front of the crank. and, one readily available for little $$
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spookytooth
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Re: Dyna Alternative?

Post by spookytooth »

Update... I got the $50 imitation Dyna s today... So far so good! The only issue I can see is that the backing plate is a little thinner than the Dyna and because of that the screws don't don't hold it quite as securely as I 'd like. We'll have to see about longevity and reliability...
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spookytooth
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Re: Dyna Alternative?

Post by spookytooth »

Update... After putting about 80 miles on this new system I have to say I'm less than impressed (but not surprised for $56). There's a minor loss of power (which might be from going to the 4into1 5 ohm coils from the 3.5 ohm Dyna coils) but also intermittent misses and significant missing above 6k rpm...


Dunno..
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spookytooth
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Re: Dyna Alternative?

Post by spookytooth »

Also... I may have found the culprit that took out the dyna to begin with. Yesterday I saw my volt gauge was sitting steadily at just under 16 volts. I've got a 4into1 regulator on the way.


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