Can you Identify this ignition module???

Energy One

Jay Dawg

Member
Finally started ripping into the 06 Mastiff today to remove the swing arm and correct it’s issues. The bike has been running good, this is Ignition module, not all of the harness from this is used. BD7351E0-E5AB-4F0F-A93B-CA96225D5647.jpeg13A0A711-DED2-4253-BCE1-EDCC1D77F282.jpeg5753A3A1-D83A-42B8-9C8B-1E902915F840.jpeg1A4043F8-C274-44A4-A855-1663006ED961.jpeg0692B8CA-33ED-40EA-9FAB-7C00E4ADF066.jpeg9B73DD24-8073-48BF-8CBE-C82F493E7324.jpeg1D8414DB-A9DF-413F-9731-6AA2E56C4642.jpeg
 

Jay Dawg

Member
Looks like an S&S IST Ignition System. They produced them for specific engines in both carbureted and full injected versions.
Thanks As I go through the bike I’m trying to identify the OEM parts and aftermarket so I know what I’m dealing with unfortunately the part number has worn away but the serial is still visible. I looked up the IST, and that’s exactly what it looks like. Thanks.
 

BigDogRick

Well-Known Member
I take it this is not something you normally find on a big dog?
It is a fairly straightforward task to bypass the ignition module of most of the EHCs, as I understand it, and install a conventional ignition system. I did it on my 2000 Vintage Classic when just that portion of my Thunderheart went bad. The rest of the relay functions of my EHC continued to operate for years until I had a massive voltage regulator meltdown of every electrical component on my bIke. Then I went with a full harness replacement from Namz with a traditional Harley relay setup that Mr. Wright on this forum wired up for me with a 30 amp main disconnect fuse to keep that from happening again.
 

Jay Dawg

Member
It is a fairly straightforward task to bypass the ignition module of most of the EHCs, as I understand it, and install a conventional ignition system. I did it on my 2000 Vintage Classic when just that portion of my Thunderheart went bad. The rest of the relay functions of my EHC continued to operate for years until I had a massive voltage regulator meltdown of every electrical component on my bIke. Then I went with a full harness replacement from Namz with a traditional Harley relay setup that Mr. Wright on this forum wired up for me with a 30 amp main disconnect fuse to keep that from happening again.
I also have a Thunderheart EHC. I figure at some point I might be completely rewiring the bike, but so far everything seems to be working ok. I don't think the knock sensor wiring from the the ignition is hooked up. I found that part of the harness terminates between the cylinders to...air. I also have a 40 amp breaker, it works, I have tested it lol. Thanks for the input.
 
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Little-Boo

Well-Known Member
Troop Supporter
I have one of them that I never installed on my 2006 Mastiff Carbureted. It's still in the box it came in brand new including the harness and all of the sensors required for installation and detailed instructions from S&S.

The Intelligent spark technology ignition works in conjunction with the exclusive S&S knock sensor. The system will make the necessary changes to the ignition timing to avoid detonation and possible engine damage. The Intelligent Spark Technology Ignition automatically adjusts to optimize engine timing and will accommodate changes made to an engine configuration. No other aftermarket ignition system for the V-Twin motorcycle uses knock sensing to control ignition timing according to S&S.

If anyone is interested, let me know.

Carlos :chopper:
 

Mastiff Rider64

Well-Known Member
I have one of them that I never installed on my 2006 Mastiff Carbureted. It's still in the box it came in brand new including the harness and all of the sensors required for installation and detailed instructions from S&S.

The Intelligent spark technology ignition works in conjunction with the exclusive S&S knock sensor. The system will make the necessary changes to the ignition timing to avoid detonation and possible engine damage. The Intelligent Spark Technology Ignition automatically adjusts to optimize engine timing and will accommodate changes made to an engine configuration. No other aftermarket ignition system for the V-Twin motorcycle uses knock sensing to control ignition timing according to S&S.

If anyone is interested, let me know.

Carlos :chopper:
I'm interested.
 

Jay Dawg

Member
I have one of them that I never installed on my 2006 Mastiff Carbureted. It's still in the box it came in brand new including the harness and all of the sensors required for installation and detailed instructions from S&S.

The Intelligent spark technology ignition works in conjunction with the exclusive S&S knock sensor. The system will make the necessary changes to the ignition timing to avoid detonation and possible engine damage. The Intelligent Spark Technology Ignition automatically adjusts to optimize engine timing and will accommodate changes made to an engine configuration. No other aftermarket ignition system for the V-Twin motorcycle uses knock sensing to control ignition timing according to S&S.

If anyone is interested, let me know.

Carlos :chopper:
Is there any reason you didn’t install it?
 

Jay Dawg

Member
I have one of them that I never installed on my 2006 Mastiff Carbureted. It's still in the box it came in brand new including the harness and all of the sensors required for installation and detailed instructions from S&S.

The Intelligent spark technology ignition works in conjunction with the exclusive S&S knock sensor. The system will make the necessary changes to the ignition timing to avoid detonation and possible engine damage. The Intelligent Spark Technology Ignition automatically adjusts to optimize engine timing and will accommodate changes made to an engine configuration. No other aftermarket ignition system for the V-Twin motorcycle uses knock sensing to control ignition timing according to S&S.

If anyone is interested, let me know.

Carlos :chopper:
Would you mind posting the part number for this ignition. I would like to see if I can download the installation instructions, I have a feeling I’m gonna be working more on the system later. Thanks
 

Unlshd

Member
I know this is an older thread but figured I'd share my method of keeping the engine happy and free of detonation. My dealer warned me about the chance of detonation when running in town during hot summer days. I'm in Montana where there aren't emissions laws or anuall smog tests on cars let alone bikes so I run the same fuel that I use for my Yamaha RX-1 Mountain snowmobile which has a centrifugal supercharger making bumping stock HP from 145 to 240 on 10 lbs boost. A 50/50 mix of ethanol free 92 octane premium pump gas and Sunoco 110 octane leaded race fuel has been run in my 07 Mastiff ever since the day I got her home. Not once have I worried about internal engine damage and everybody I ride with is impressed with the bark and flames that she belches out of the V&H Big Radius pipes which I removed the baffles out of. When I do road trips; I carry a couple bottles of VP Racing non leaded additive. I used to work for Phillips 66 Refinery here in Billings, Montana. My job for the initial 8 years was blending the on road fuels seen at gas stations as well as on road/off road (red dye) diesel, Jet fuel and 100 octane leaded aviation fuel aka "av-gas". Which enlightened me on incorrect myths about high octane fuel burning hotter than low octane as well as misconceptions many people make when reading the claims made on the bottle of Octane Booster and other misconceptions about various other types of fuel. FYI.... Jet Fuel used in commercial jets and Kerosene are the same except for additives to prevent jet fuel gelling in the much colder temps the see at altitude like Diesel will do during winter temps we see in the northern states and Canada.that running higher octane fuel than required will prevent internal engine damage and not make your engine run hotter. To get to the point finally higher octane won't burn up an engine designed to run lower octane fuel. In truth: it's resistance to detonation at the pressure and temperature of the lower octane fuel if anything it will inherently result an incomplete lower compression caused when the unturned fuel slightly quenches the internal components. This means no need for timing being retarded to keep temps in check by causing spark at a point less desirable for optimum burn and the loss in performance caused by this. There is also unleaded 110 octane fuel for those of you that may have to worry about emissions or lead killing the O2 sensor if your Dog is FI rather than carbed don't mind the extra cost over pump gas you want to have a happy dog with no power. I use either Sunoco or VP Racing fuels and VP's concentrate when I road trip. This is not the same a Octane Booster additives.
 
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