I take it this is not something you normally find on a big dog?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.Looks like an S&S IST Ignition System. They produced them for specific engines in both carbureted and full injected versions.
Well I can say for sure my mastiff don't have it. lolI 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.I take it this is not something you normally find on a big dog?
It is still working well, just trying to I.D. the parts as I am removing the swing arm. ThanksCall Daytona Twin Tec, and see what they have to replace your Big Dog ignition system.
John
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.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'm interested.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
Is there any reason you didn’t install it?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
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. ThanksI 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
Thank you!!!Here you go!
Module, Kit, Ignition, IST Performance VP-P # 55-1221
There is a Serial Number on the Module JY00252A
Carlos