Ignition Woes...
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Seasoned HDF Member
Joined: Mar 2010
Posts: 21,099
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From: Poolville
The last 2 ignition modules that went on me were both being used in the single fire mode and after they were blown out I could switch to dual fire mode on the module and without replacing the coil to a dual fire and it would run, on the single fire coil..
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Joined: Dec 2005
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From: NC USA
Times like this an analog Simpsom or Radio Shack equlivant is hard to beat. I have 5 Flukes but still keep batteries in my old ME-297/U
The Fluke 73II is supposed to record but I never used mine for that.
Push the yellow **** in the center of the main **** as you're selecting mode. Connect leads and it'll record high. Then push again it shows low... best I remember
The Fluke 73II is supposed to record but I never used mine for that.
Push the yellow **** in the center of the main **** as you're selecting mode. Connect leads and it'll record high. Then push again it shows low... best I remember
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Seasoned HDF Member
Joined: Mar 2010
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From: Poolville
Thank you Rufus, A friend of mine is allowing me to try a known good regulator tomorrow.. Well see how it does..
Also it's there truth that a regulator can bleed AC voltage through the output to the battery causing the spike?
Also it's there truth that a regulator can bleed AC voltage through the output to the battery causing the spike?
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Joined: Apr 2011
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From: W. Texas
Start praying for wisdom at this point. Jeeez
WP
HDF Community Team
Joined: Dec 2005
Posts: 5,404
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From: NC USA
Could never tell any difference except a slight exhaust note difference.
Did you ohm the S&S after you took it off?
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Seasoned HDF Member
Joined: Mar 2010
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From: Poolville
I ran my Ultima on dual fire with the single fire coil for 12-14 years. Only switched to single when I wanted to run a timing light. Put the d2ki on couple years ago, been running it on single fire. Same coil for both.
Could never tell any difference except a slight exhaust note difference.
Did you ohm the S&S after you took it off?
Could never tell any difference except a slight exhaust note difference.
Did you ohm the S&S after you took it off?
I have to agree on the different exhaust note..
Last edited by 98hotrodfatboy; Apr 28, 2024 at 08:15 PM.
HDF Community Team
Joined: Dec 2005
Posts: 5,404
Likes: 2,605
From: NC USA
When you first start and hard charging that few seconds till the battery is back up, the A/C volts will be seemingly high then drop back to near nothing. That's easy to check and usually all you need.
To know how much problem it will cause you, have to check the A/C amps, and that's a different world altogether without the necessary probes. they expensive too.
I still don't see how they can quick spike. Go high and go back down in cycles, yes or stay high. I would trust your Fluke before I'd trust an aftermarket digital volt gauge to be honest.
sorry guys, I type real slow and hit wrong keys a lot. Takes me a while sometimes
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Joined: Oct 2015
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From: Pine Flat Dam/South Bay Area, CA
RF interference from the ignition secondary can scramble the reading from a digital voltmeter, especially if it isn't shielded very well. If you can, find an analog voltmeter and check the system again.
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Seasoned HDF Member
Joined: Mar 2010
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From: Poolville
Checked, all ok.. I did make a new front 8mm wire though..
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Seasoned HDF Member
Joined: Mar 2010
Posts: 21,099
Likes: 7,625
From: Poolville
I will pick one up tomorrow. However there are to many lights on the dash of my Speedo that simultaneously light up when I see the spike..