Wont Start... Bad Dyna III Electronic Ignition Box?

[swr1977]

Can anyone tell me if it's possible to test if the Dyna III electronic ignition box is working correctly? I started my bike this-morning and it ran fine.... got ready for my ride... went to restart I have no spark... I checked the coils and there are fine... bike has new plugs and timing belts... they are fine... checked static timing with a test light and nothing... nether blue or yellow wires light on ether F1 or F2 timing marks! Any Help or Suggestions are greatly appreciated! If you have Facebook please comment here then PM me!

[ekvh]

With just a test light, do you have power going into the box? Red wire, I think.

The early ones were often powered through the turn signal, so a blown fuse results in a dead bike.

There is a test procedure at DynaTechonline. I’ll try and locate it for you.

Dyna is great to test it for you, but it takes time.

[ekvh]

http://www.dynaonline.com/support/downl ... DYNA%20III

http://www.powercommander.com/downloads ... /D31-3.pdf

[Fred Camper]

Correct me if I am wrong, but seems to me the dyna 3 in the picture is of 1980 vintage. My guess is that it has aged and it is time to replace with a newer Dyan S.

[swr1977]

Correct me if I am wrong, but seems to me the dyna 3 in the picture is of 1980 vintage. My guess is that it has aged and it is time to replace with a newer Dyan S.

Yes my ride is a 1978 GL1000

I did find the problem being a loose power wire going to it... just got home from a 100 mile ride. Wondering about the Dyan S ? how much ? and would it be to my advantage to upgrade?

[swr1977]

With just a test light, do you have power going into the box? Red wire, I think.

The early ones were often powered through the turn signal, so a blown fuse results in a dead bike.

There is a test procedure at DynaTechonline. I’ll try and locate it for you.

Dyna is great to test it for you, but it takes time.

Thanks! I did find the problem being a loose power wire going to it... just got home from a 100 mile ride.

[Fred Camper]

Over $100 if I recall. Not urgent but you may need one before the end of the season. Usually it will drop to two cylinder mode when hot as it ages further.

[dingdong]

Since you found the problem to be just a loose wire there is no reason to think it will fail. I suggest you let it go for another 20 years. The newer models seem to have a higher failure rate than the old.

[swr1977]

Since you found the problem to be just a loose wire there is no reason to think it will fail. I suggest you let it go for another 20 years. The newer models seem to have a higher failure rate than the old.

Good to know... Thanks!

[ekvh]

The Dyna 111 are very reliable. The next generation has issues with solder coming undone under a black cover on the plate assembly. The newest version has been out 3-4 years, I think and it is solid state. I have heard of only one failure with them.

Personally I think the older Goldwings charging system may have more to with the failures. It probably is worth it to check voltages under load for failing regulators to protect the unit. Dyna doesn’t offer a big warranty, one year, but has a reputation of offering a new one at half of retail if it tests bad.

[swr1977]

The Dyna 111 are very reliable. The next generation has issues with solder coming undone under a black cover on the plate assembly. The newest version has been out 3-4 years, I think and it is solid state. I have heard of only one failure with them.

Personally I think the older Goldwings charging system may have more to with the failures. It probably is worth it to check voltages under load for failing regulators to protect the unit. Dyna doesn’t offer a big warranty, one year, but has a reputation of offering a new one at half of retail if it tests bad.

Funny you should mention failing regulators... I did notice on my ride that my voltage would drop to 11-12 volts and then a bit later would be back up to 14... I think ether my regulator or generator is on it's way out!