Ignition questions...

Ribs

Live Free & Ride Hard

I've been reading other parts about this module and the talking about lights coming on and stuff like that this one? Nothing not a light comes on when I turn ignition on. We will see in couple days when this new module comes.


Live Free and Ride Hard
 

chubs

Guru

I've been reading other parts about this module and the talking about lights coming on and stuff like that this one? Nothing not a light comes on when I turn ignition on. We will see in couple days when this new module comes.


Live Free and Ride Hard
My eyes aint what they used to be, but up by the 6 pin connection, is that circuit board discolored ? Couldn't tell if its burned or just my eyes :oldconfused:
 

Ribs

Live Free & Ride Hard
Yes thanks I've ordered a new module.
If it don't light up like a V-twin Christmas tree I'm returning it and going with a whole new ignition.
I've emailed thunder heart and called them. If I don't hear from them soon the answer is very clear they don't need my business.
I'm done messing around with this. Thanks y'all for your help when the new module comes in I'll post my findings.

Ribs


Live Free and Ride Hard
 

FrankBDPS

Well-Known Member
You do realize the unit you are holding in you're hand is not the ignition module don't you? That is the EHC or electronic harness controller. The ignition module is the metal one with the thunder heart shield and sword on it.

Eric is right and that is why I asked about the micro relay. Some one else has been in there. She ain't no virgin any more. Don't get discouraged. When this is all over with you will love that bike.
 

Th3InfamousI

Administrator
Staff member
You do realize the unit you are holding in you're hand is not the ignition module don't you? That is the EHC or electronic harness controller. The ignition module is the metal one with the thunder heart shield and sword on it.

Eric is right and that is why I asked about the micro relay. Some one else has been in there. She ain't no virgin any more. Don't get discouraged. When this is all over with you will love that bike.
Haha..nice way to put it.

No idea where that relay went still...but someone has been in there before messing around.



Sent from my 2PS64 using Tapatalk
 

BigDogRick

Well-Known Member
That relay is the primary power relay that acts like a master fuse. In my 2000 vintage, it sits behind and outside of the module but acts as a fuse if enough resistance builds up it opens up and disconnects power from the module (essentially everything). It is a very common single pole relay. I am surprised to see it plug into the module but do see how it could still perform its function. But as Eric and Frank are saying, the module has nothing to do with your ignition except the routing of the low voltage start button. The aluminum box can be replaced along with the cam sensor in the cone with a single S&S/Crane Hi-4N ignition that will perform beautifully and mount with the same doubly screws as your cam sensor.
 
Last edited:

Th3InfamousI

Administrator
Staff member
That relay is the primary power relay that acts like a master fuse. In my 2000 vintage, it sits behind and outside of the module but acts as a fuse if enough resistance builds up it opens up and disconnects power from the module (essentially everything). It is a very common single pole relay. I am surprised to see it plug into the module but do see how it could still perform its function. But as Eric and Frank are saying, the module has nothing to do with your ignition except the routing of the low voltage start button. The aluminum box can be replaced along with the cam sensor in the cone with a single S&S/Crane Hi-4N ignition that will perform beautifully and mount with the same doubly screws as your cam sensor.
Nice eye Rick I didn't even notice he had his finger where that relay went. I was looking at the tank pics and missed that haha.

Isn't that the starter relay? Someone swapped it out I think. But as you mention not really anything to do with the ignition issue per say.

It looks like he already ordered a new EHC so he will rule out the board with that I guess



Sent from my 2PS64 using Tapatalk
 
Last edited:

BadDawg Bill

Well-Known Member
That relay is the primary power relay that acts like a master fuse. In my 2000 vintage, it sits behind and outside of the module but acts as a fuse if enough resistance builds up it opens up and disconnects power from the module (essentially everything). It is a very common single pole relay. I am surprised to see it plug into the module but do see how it could still perform its function. But as Eric and Frank are saying, the module has nothing to do with your ignition except the routing of the low voltage start button. The aluminum box can be replaced along with the cam sensor in the cone with a single S&S/Crane Hi-4N ignition that will perform beautifully and mount with the same doubly screws as your cam sensor.
1++ S&S/Crane Hi-4N ignition and fergetaboutit.....
 

Hirter6Pack

Not Quite A Guru
Yes thanks I've ordered a new module.
If it don't light up like a V-twin Christmas tree I'm returning it and going with a whole new ignition.
I've emailed thunder heart and called them. If I don't hear from them soon the answer is very clear they don't need my business.
I'm done messing around with this. Thanks y'all for your help when the new module comes in I'll post my findings.

Ribs


Live Free and Ride Hard
Read page 11 chapter 4.1
We do not want that thing lighting up like a Christmas tree. IMG_1557.PNG
Although a new EHC may solve your problems. If it is like the 04 the EHC supplies voltage to the thunder heart ignition module ( that little silver box at the top of the tank) it needs at least 8volt for that module to work.
When my EHC failed it had the power on LED illuminated That's a good thing. No other LED was illuminated that's a good thing. Problem was Thunderheart ignition module at the top of the tank with the one LED (that little silver box) never flashed while cranking. So with an amp meter and a little sewing needle I figured the EHC was only putting out 6volts. Damn the bad luck. Now to test that theory I could get the bike to run by supplying 12 volts with that same sewing needle. Fired right up.
Shit
Replaced the EHC. All is well.


IMG_1099.PNG
This is the thunderheart ignition module. With the little LED by the data port. It should flash while cranking and stay on while running providing the cam sensor is good and you have enough supply voltage from the EHC.
 

Ribs

Live Free & Ride Hard
Ok I'm not getting any red LED now,. The light.. it use to come on when I turned on the ignition.
I will have the other module in couple days thanks for the info.
I will go threw the manual and re read your post and see what I can figure out.


Live Free and Ride Hard
 

FrankBDPS

Well-Known Member
That relay is the primary power relay that acts like a master fuse. In my 2000 vintage, it sits behind and outside of the module but acts as a fuse if enough resistance builds up it opens up and disconnects power from the module (essentially everything). It is a very common single pole relay. I am surprised to see it plug into the module but do see how it could still perform its function. But as Eric and Frank are saying, the module has nothing to do with your ignition except the routing of the low voltage start button. The aluminum box can be replaced along with the cam sensor in the cone with a single S&S/Crane Hi-4N ignition that will perform beautifully and mount with the same doubly screws as your cam sensor.
At first I did not remember that relay on mine and thought it was separate from the EHC. These 12 hour shifts seven days a week are burning up what few brain cells I have left. He will know more about his bike than most guys when he is done with it. Keep up the good work. Did you get you're bike running Rick?
 

BigDogRick

Well-Known Member
At first I did not remember that relay on mine and thought it was separate from the EHC. These 12 hour shifts seven days a week are burning up what few brain cells I have left. He will know more about his bike than most guys when he is done with it. Keep up the good work. Did you get you're bike running Rick?
Not yet. Its been a very spotty search for the gremlin since eliminating the big and obvious.
 

Unsprung

In the Potters hand...
The EHC you pulled the relay from is an upgrade from the BDM unit. I Purchased and installed a Big Dog ready Thunderheart EHC from Curtis at Wild Steed Worx, same one in your pic. Some of the wires had to be changed from the stock location so if this was done on your bike keep in mind the harness is not going to match the original schematic. I lost my IG module, (with sword and shield), and cam sensor, also replaced through WSW. Have not had any ignition issues since. Seems your IG module may be going bad or the cam sensor is shot.
 

Ribs

Live Free & Ride Hard
Yeah I'm going to take out the cam sensor and test it I already bought the S&S Intelligent Spark Technology High Output Single Fire Ignition Coil.
So I'm going to get the S&S/Crane Hi-4N ignition module.
That should sort things out.


Live Free and Ride Hard
 

Ribs

Live Free & Ride Hard
Read page 11 chapter 4.1
We do not want that thing lighting up like a Christmas tree. View attachment 42259
Although a new EHC may solve your problems. If it is like the 04 the EHC supplies voltage to the thunder heart ignition module ( that little silver box at the top of the tank) it needs at least 8volt for that module to work.
When my EHC failed it had the power on LED illuminated That's a good thing. No other LED was illuminated that's a good thing. Problem was Thunderheart ignition module at the top of the tank with the one LED (that little silver box) never flashed while cranking. So with an amp meter and a little sewing needle I figured the EHC was only putting out 6volts. Damn the bad luck. Now to test that theory I could get the bike to run by supplying 12 volts with that same sewing needle. Fired right up.
Shit
Replaced the EHC. All is well.


View attachment 42260
This is the thunderheart ignition module. With the little LED by the data port. It should flash while cranking and stay on while running providing the cam sensor is good and you have enough supply voltage from the EHC.
Yeah mine does nothing, it use too light up and flash when cranking. But I guess it decided to pack it in.

I will be getting the HI-4N ignition module on the 28th
Hope I don't have to Shell out much more with the two coils and the new thunder heart module and the HI-4N ignition almost 750.00 and allot of wasted time not enjoying my Beast.

I appreciate all the help and advice y'all have given and shared with me.

There is a bike show I wanted to put the Bull Dog into but I'm not liking the time factor the rally is for two days and the bike show is on the saterday 1st of April.
I don't like my chances of getting it ready.
Looks like I'll have to put my Dyna Low Rider in there in stead.

If any of you are going to the Cabot.AR spring fling. You'll find me near the B.A.C.A tent.

Ribs

Live Free and Ride Hard
 

Ribs

Live Free & Ride Hard

Got the S&S Hi-4N ignition in finally, going to be using the duel fire coil.

It's not going to run as good as the single fire coil from what I'm reading but it will have to do until I can figure out how I'm going to mount the bigger single fire coil behind the Bigdog billet cover.

Still wiring it all up. I know I already got a couple questions for you guys

I'm reading about VOES the manual says if a VOES is not used the Violet wire may be grounded to use full Advance curve or taped up to use the retarded curve depending on the application and timing requirements of the engine.
?
Hope y'all are doing good.
Ribs

Live Free and Ride Hard
 

FrankBDPS

Well-Known Member
Bike shows are nice but they are a huge waste of riding time. I used to go to them and finally woke up to the fact that I was missing seat time while standing around doing nothing. Keep up the good work.
 

Ribs

Live Free & Ride Hard
My Chopper is alive and running.
That was too easy.

It's a 107 S&S

The settings I got on the HI-4N

Mode 5

Advance rate 7

Rev limit 5500

Any suggestions?



Live Free and Ride Hard
 

Ribs

Live Free & Ride Hard
I'm not sure if I need to mess with the timing adjustment the idle seemed a tad low with the new ignition. Idled it up a bit and it seems ok.
Any suggestions on setting the timing correctly or does the Hi-4N do that electronically ?


Live Free and Ride Hard
 
Top