1992 softail custom
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Stage III
Joined: Aug 2022
Posts: 3
Likes: 1
From: Georgia
1992 softail custom
Hey everybody, I'm stumped. I've got a 92 softail custom and I was riding it the other day. All of a sudden I get a boiling battery and high idle so I shut it down and I womt start back up. I've already installed a new v-REG. I changed all circuit breakers. My start button on my handle bars is intermediate on when it wants to turn the bike over. Also, I have no fire to coil. I've tried tracing wires and I am absolutely stumped. Any input is much appreciated
Last edited by Kaleb110396!!; Aug 29, 2022 at 10:54 AM. Reason: No start or Fire
Seasoned HDF Member
Joined: Mar 2010
Posts: 38,693
Likes: 6,474
From: Honah Lee
Welcome from North Beach, FL., USA! 
Just in case you have not done this and I recommend this only as a suggestion....
Add a Signature Line in your USER set up for your bike year, model, and all the letters that Harley recognizes it with. Others will see it at the bottom which enables them to know your exact model if you ever ask a question. All Harleys are not the same and year and all the model letters make a big difference.
Also, add an Avatar of your favorite shot in the USER setup for the small picture others will see in the top left corner of your post.
It's also very helpful to read the 'HDF Site Rules' listed at the top of the new member area.
You're all set.... Enjoy the ride! ______________
Just in case you have not done this and I recommend this only as a suggestion....
Add a Signature Line in your USER set up for your bike year, model, and all the letters that Harley recognizes it with. Others will see it at the bottom which enables them to know your exact model if you ever ask a question. All Harleys are not the same and year and all the model letters make a big difference.
Also, add an Avatar of your favorite shot in the USER setup for the small picture others will see in the top left corner of your post.
It's also very helpful to read the 'HDF Site Rules' listed at the top of the new member area.
You're all set.... Enjoy the ride! ______________
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,210
Likes: 11,336
From: San Diego, CA
Hey everybody, I'm stumped. I've got a 92 softail custom and I was riding it the other day. All of a sudden I get a boiling battery and high idle so I shut it down and I womt start back up. I've already installed a new v-REG. I changed all circuit breakers. My start button on my handle bars is intermediate on when it wants to turn the bike over. Also, I have no fire to coil. I've tried tracing wires and I am absolutely stumped. Any input is much appreciated
If not, start at the beginning....
With the limited info you provide, you need to be systematic and thorough in your diagnosis to find the issues(s)... it all boils down to spark, fuel, and compression.
You had high idle and boiling battery.... That suggests an electrical issues and a possible fuel issue...
Boiling battery is obviously electrical... You replaced the VR but did you check the battery and the stator...?? Those three work together and one going bad can affect the other two... you need to figure out if your 12 volt system is healthy...
After addressing your 12v system, you need to decide if the power issues caused the high idle and lack of starting, or is that a fuel issue... If it is a fuel issue, then you need to go through your fuel system to find out why it raced the engine (carb problem, like stuck float) and now won't let it run...
Keep us informed as you go through your checks and many here will share their experiences and offer suggestions...
Club Member
Joined: Sep 2010
Posts: 15,438
Likes: 7,130
From: Beyond Fucital
Replace the battery, get it started with the regulator disconnected from the stator and do the charging system diagnostic.
You might need to get creative with a battery charger and fan to keep it running long enough to do a proper test.
You might need to get creative with a battery charger and fan to keep it running long enough to do a proper test.
Thread Starter
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Stage III
Joined: Aug 2022
Posts: 3
Likes: 1
From: Georgia
I forgot to mention I did replace the battery, I've got 13.2 volts there. So, I infact know that that is okay. so that knocks out 1 more issue. My ground is good and secure. I however haven't checked my stator. That's something I'm unsure of how to do a diagnostic test on
Thread Starter
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Stage III
Joined: Aug 2022
Posts: 3
Likes: 1
From: Georgia
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Stellar HDF Member
Joined: Oct 2005
Posts: 2,379
Likes: 227
Go to the Evo section on this site and there will be a thread stuck at the top that will run you through how to check your charging system. You'll find lots of tech info for your bike in the Evo section. good luck.
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