For those not familiar, THUNDERHEART is a first class OPERATION. I use their products often here in the States, NEVER a hiccup ever. PINGEL, best in the BUSINESS, PERIOD. Me personally would have used a 44mm C.V. Carb, this is my most popular EFI conversion. The MIKUNI carb of course is a excellent choice, but I've really learned over the years, with more dyno tuning than I care to remember, that the CV is a better all around carb. YES, the MIKUNI always makes 3-5 more horsepower on the same engine on the top, the CV is a better performer all around on the street. Just my humble opinion of course. I have a small Dyna performance shop and decades of dyno tuning and Engine Building behind me. GREAT JOB ON THE VIDEO !!!
Thanks for the comments, here in the UK our fuel at the pump is 99 octane and we always have had better results with the HSR Mikuni, but it interesting to hear other people experiences.
After having multiple problems with my neighbors 2007 I too am going to help him well I'll be doing the work converting it to a carburetor. It wasn't a fire and rebuilt and lasted for 2 years no problem with the original computer but then throttle position sensor and map sensor codes came up replace those items can't get it to clear the codes I thought replacing the computer might be considering it was in the fire so I married it it still would not take throttle to local Harley-Davidson dealers both have spent several hundred dollars of this person's money and still not fixed it just told him it was going to be a winter project considering this is summertime so I said I would look into what would be the best to switch it over to a carburetor for him it is a 2007 Softail
man i converted my 04 springer with a thunderheart stand alone. was good for a few years but it all shorted out when riding through Michigan in the rain. so what i did is sourced a wiring harness from an 04 non-efi, a coil and an icm and basically converted the bike as if it were from the factory carbed. also a map sensor with manifold. to easy and not that expensive. at alibi customs in el paso weve done a lot of these conversions. great video. thanks.
I junked the EFI from a 2010 Streetbob and found problems still using the rest of the ecu services - speedo , security module etc, so I took the wiring loom out and took all the unwanted wiring out. I used a turn signal module from a 2001 Carb equipped Dyna and speedo from same. The speedo wiring runs through a re-calibration box from YellowBox in Australia straight off the sender, I used a wiring diagram from a 2001 Dyna as all the colour coding was the same and that diagram shows you how to do things without the immobiliser and some other things. I still have a fuel gauge but no starter isolator (for when it's in gear/stand is down). Soldered a few joints here and there, wrapped the loom in old fashioned cloth tape and it worked first time. I use an ignition module from Altmann in Germany - the P3 (chosen as it works with all my engine mods) with the original coil . There is NO computer programming needed and it does not use the vacuum advance nonsense either. My bike has never had any problems in 7 + years and over 50k miles. One very positive thing is that the alarm/immobiliser does not drain the battery all the time 'cos it ain't there no more !
We have used a number of different ignitions, and both totally re-wired or reused the stock ecu loom, for us its about what the client wants, cost etc. Glad yours worked out for you.
@@andyforbes-buckingham1183 I could not get the security system to work without the ECU connected to all the EFI and ignition equipment - it use to play up a lot with just the airfilter flap valve and exhaust servo disconnected when I still had the EFI and ignition being controlled by the ECU. It would lock me out all the time so I took it off and sold it !
@@andyforbes-buckingham1183 I was using the Altmann P3 but now that I have gone 'over the top' engine mod wise I find it is not suitable anymore. Charles Altmann himself recommended a new system he is marketing the P2 mainly for older models with much more adjustability but it needs to use a cam sensor in place of the crank sensor. I thank you for uploading this video as I then investigated the Thundermax system and see that it provides the option to totally write one's own mapping - albeit with use of a computer - as well as using pre-programmed curves..... thanks again.
Hey man! Great video! About to do this on my 2004 FXDLi because of some electrical issues with the EFI. Did you loose your gas, speedo or tach? I’ve heard these conversions could make you loose those gauges. And did you have to dyno the bike after? Thank you!
I just started a project trike of sorts. I purchased two new harley davidsons a 2023 tri glide and a 2023 cvo road glide. I'm gutting the road glide for the fairing, tank, lowers, engine and tour pack. I'll have a home built cvo tri glide with a road glide fairing in the 120th anniversary cvo color scheme with the 117 engine with air cooled heads and carburetor ( mikuni) no shared braking and no abs or rsds. And true duals and after market stereo with Google maps. It will be more of a traditional motorcycle/ trike and less like a three wheeled car.
U need 3 things, left pointing fuel valve,and Evo manifold,hsr42 or carb if ur choice with the air cleaner setup. Use the stock computer with the stock wiring harness, plug in only the crank sensor, the stock coil , and leave the engine temp sensor plugged in by the manifold.i struggle with thunderheart ignition systems. They run like crap. So I thought to try all the stick stuff and it works amazing forget all this nonsense unless u thing u need a new ignition due to a heavy modified engine.. I'm trying to help other because after my conversion my bike was at Harley for 2 months nobody could figure out why it wasn't running as good as it should, low and behold I used the stick ignition and it runs like it's on rails except that classic idle . So take my word for someone who's been there, u have nothing to loose. It's simpler than people make it out to be
Yeah the thunderheart works but dosent run nearly as well as the stock efi computer and ignition. At least mine didn't . I swear ud never know this thing was carbed it's like a brand new bike I'm stunned . Look into it
There is no reason it wouldn't work for a fly-by-wire bike, you'd obviously need to add throttle sleeve, grip and cables but otherwise I can't see a problem.
Andy that seems to be the best way to go Mate when the EFI goes wrong. I am seriously considering doing this install but can i keep the stock speedo? The reason i ask is because one wire from the stock speedo goes to the stock ECU. Not sure what this is for but i don't want to lose the speedo you understand. Since you made this video the Altmann Ignition seems to be getting popular. What is best in your opinion? Altmann or Thunderheart? Kind regards. Ian W.
Good day, I have the same problem with my Road King 1999 Twin Cam with Magnetti Marelli ignition system and it is a rubbish, the Thunder Heart ignition system is COMPATIBLE with that year ??? And what brand of petcock did you use ??? Thanks and Great video
Hi Antonio, the Thunder-heart system is completely stand alone, all it uses from the bike is the CPS crank position sensor, and then you just supply a 12v feed and ground. we used a Pingel tank adaptor and a re-pro of a Harley fuel tap
@@andyforbes-buckingham1183 Then the thunder heart ignition system is compatible with that year, excellent news Andy, I thank you very much for your prompt response, I will continue to see your excellent videos and I am already subscribed in your channel, many thanks again, greetings from Mexico
Antonio, try adjusting MM EFI, heres the link, this adjustment is also explained in the HD manual if you have one. th-cam.com/video/bY6Pw8WpSfc/w-d-xo.html
Same here 1999 Road King Classic….. Planning on doing this same exact fix… Would anyone have a parts list of all the parts needed.. Thanks for posting this much needed info…!
Got a new to me 2000 harley 88ci softail, its sat for 2.5yrs from a divorce, running a unknown big bore kit, s&s super e, and ive just lost spark on a delphi 4 wire coil, im not familiar with this setup, any help qould be appreciated. I cleaned the tank and carb, rode it home (2 miles) after a lengthy jump start. Didnt smoke, no ticks, only fault was poor idle, attribute that to carb varnish.
We try not to make the vids overly complex or too long as people get board! it's more the process than a step by step guide, but thanks for the feedback, comments noted
Have you ever done this with the 1995 electra glide that has the two interior steel lines? One pressure and one return. Whats the best way to remove them so i can use the adapter?
Hi Kyle, to date all our conversions have been on Delphi systems, obviously you need to install the tap and those steel lines will present a problem, I reckon it would have to be a case of drilling it out to allow the fuel taps filter sufficient clearance, go little and often and take care.
@@electricstartclint I dont have the parts list handy but got everything off Amazon and Ebay..ignition to old style electronic and coil intake manifold and carb plus intake mounts pringle? Adapters for pressure and return and petcock (bikers choice) Is cheaper then pingle's by $70 cv40 carb on ebay $58 brand new ignition $120 new intake manifold new $60 intake flanges $40 new..hope this helps
@@electricstartclint forgot to say mine is a 1998 Electra Glide ultra classic fi so 1998 flhtcui that is getting put to carb so it will be a 1998 flhtcu
so i just picked up a 2011 flh that was totaled and sold by insurance for what equals to 125 dollars it will need an intire wiring harnessand , tires paine and few more things the question is can I get an old harness from carbs days and use it with this set up where the bike will be simple like the old days
just an fyi the bike was not in an accident it was burnt but nothing wrong with the engine itself missing the gauges and the headlights thinking to dump the fairings and keep it somewhat like a fatboy if you get my drift
Yes it'll work along side an older style loom assuming you can find one, I believe there are reproduction looms available through the aftermarket suppliers.
Yes the ignition has to be upgraded as the FI (fuel injection) ECM will not work with the majority of the sensory devices missing. We have used a Thunderheart ignition here which is shown in the video, there are others on the market but this one is well priced and easy to use.
Does iT work on a 2008 flh . The bike spluttering when i pull throttle full open . Code p0108 map sensor . I check wiring and put 350$ of parts (map sensor , idle air control sensor, idle speed sensor, intake gasket, fuel pump and regulator) check all wiring ,crank sensor . The bike still had problem on acceleration and run so poor that it's not riddebale For me . I Read all blogs and stuff . I didn't change the injector but i think i had enough of efi .. people were telling me to not Buy an efi and i should had listen because nobody knows what they Do with those bike . Or Nobody's available . Invest 10000$ on that bike i want to go ride .
Somebody please tell me here I'm about to swap my 2008 fuel injector sportster nightster to 2006 carburettor streetbob , what's pros & cons of it please ? Should I go for the bob ? Or stay with the sporty
The unit runs out at £360 and we can supply and ship. check out the link www.afbmotorcycles.co.uk/performance/ignition/thunder-heart-performance-tc-ignition-module
Yes the speedo and tacho still work but it does leave the engine lamp on, we tried to disconnect it but it stopped the speedo from working, perhaps it was because we disconnected from the clock end, we are going to try from the ECU to see if we can loose the light.
![[MV] A leap of faith...ความเชื่อใจครั้งสุดท้าย (From "Petrichor the series")](http://i.ytimg.com/vi/U1piZH2CNXA/mqdefault.jpg)
For those not familiar, THUNDERHEART is a first class OPERATION. I use their products often here in the States, NEVER a hiccup ever. PINGEL, best in the BUSINESS, PERIOD.
Me personally would have used a 44mm C.V. Carb, this is my most popular EFI conversion. The MIKUNI carb of course is a excellent choice, but I've really learned over the years, with more dyno tuning than I care to remember, that the CV is a better all around carb. YES, the MIKUNI always makes 3-5 more horsepower on the same engine on the top, the CV is a better performer all around on the street. Just my humble opinion of course. I have a small Dyna performance shop and decades of dyno tuning and Engine Building behind me.
GREAT JOB ON THE VIDEO !!!
Thanks for the comments, here in the UK our fuel at the pump is 99 octane and we always have had better results with the HSR Mikuni, but it interesting to hear other people experiences.
@@andyforbes-buckingham1183 Most super unleaded is 97 octane..... Tesco's is the only place I can find 99.....
After having multiple problems with my neighbors 2007 I too am going to help him well I'll be doing the work converting it to a carburetor. It wasn't a fire and rebuilt and lasted for 2 years no problem with the original computer but then throttle position sensor and map sensor codes came up replace those items can't get it to clear the codes I thought replacing the computer might be considering it was in the fire so I married it it still would not take throttle to local Harley-Davidson dealers both have spent several hundred dollars of this person's money and still not fixed it just told him it was going to be a winter project considering this is summertime so I said I would look into what would be the best to switch it over to a carburetor for him it is a 2007 Softail
@@MoeLarrycurly1 I have a 2007 softail custom, and I am planning on switching to carburetor when the fuel-injection system starts asking for money.
man i converted my 04 springer with a thunderheart stand alone. was good for a few years but it all shorted out when riding through Michigan in the rain. so what i did is sourced a wiring harness from an 04 non-efi, a coil and an icm and basically converted the bike as if it were from the factory carbed. also a map sensor with manifold. to easy and not that expensive. at alibi customs in el paso weve done a lot of these conversions. great video. thanks.
I junked the EFI from a 2010 Streetbob and found problems still using the rest of the ecu services - speedo , security module etc, so I took the wiring loom out and took all the unwanted wiring out. I used a turn signal module from a 2001 Carb equipped Dyna and speedo from same. The speedo wiring runs through a re-calibration box from YellowBox in Australia straight off the sender, I used a wiring diagram from a 2001 Dyna as all the colour coding was the same and that diagram shows you how to do things without the immobiliser and some other things. I still have a fuel gauge but no starter isolator (for when it's in gear/stand is down). Soldered a few joints here and there, wrapped the loom in old fashioned cloth tape and it worked first time. I use an ignition module from Altmann in Germany - the P3 (chosen as it works with all my engine mods) with the original coil . There is NO computer programming needed and it does not use the vacuum advance nonsense either. My bike has never had any problems in 7 + years and over 50k miles. One very positive thing is that the alarm/immobiliser does not drain the battery all the time 'cos it ain't there no more !
We have used a number of different ignitions, and both totally re-wired or reused the stock ecu loom, for us its about what the client wants, cost etc. Glad yours worked out for you.
@@andyforbes-buckingham1183 I could not get the security system to work without the ECU connected to all the EFI and ignition equipment - it use to play up a lot with just the airfilter flap valve and exhaust servo disconnected when I still had the EFI and ignition being controlled by the ECU. It would lock me out all the time so I took it off and sold it !
@@andyforbes-buckingham1183 I was using the Altmann P3 but now that I have gone 'over the top' engine mod wise I find it is not suitable anymore. Charles Altmann himself recommended a new system he is marketing the P2 mainly for older models with much more adjustability but it needs to use a cam sensor in place of the crank sensor.
I thank you for uploading this video as I then investigated the Thundermax system and see that it provides the option to totally write one's own mapping - albeit with use of a computer - as well as using pre-programmed curves..... thanks again.
Hey man! Great video! About to do this on my 2004 FXDLi because of some electrical issues with the EFI. Did you loose your gas, speedo or tach? I’ve heard these conversions could make you loose those gauges. And did you have to dyno the bike after? Thank you!
it even sounds better i love the sound of a harley with a carb thx
I just started a project trike of sorts. I purchased two new harley davidsons a 2023 tri glide and a 2023 cvo road glide. I'm gutting the road glide for the fairing, tank, lowers, engine and tour pack. I'll have a home built cvo tri glide with a road glide fairing in the 120th anniversary cvo color scheme with the 117 engine with air cooled heads and carburetor ( mikuni) no shared braking and no abs or rsds. And true duals and after market stereo with Google maps. It will be more of a traditional motorcycle/ trike and less like a three wheeled car.
Thanks for the info. My 99 road king classic is giving me problems.
Brilliant carbs still got mine on me Deuce good video Andy keep them coming
Thanks Cider
Absolutely amazing Andy!
I was expecting it to give the engine more of the old school Harley sound, like the ones that have a carb as standard but it didn’t
Excellent video. Right to the point.
Nice job, man! I want to convert my 2008 Super Glide. DO you know where I can find the ignition system?
U need 3 things, left pointing fuel valve,and Evo manifold,hsr42 or carb if ur choice with the air cleaner setup. Use the stock computer with the stock wiring harness, plug in only the crank sensor, the stock coil , and leave the engine temp sensor plugged in by the manifold.i struggle with thunderheart ignition systems. They run like crap. So I thought to try all the stick stuff and it works amazing forget all this nonsense unless u thing u need a new ignition due to a heavy modified engine.. I'm trying to help other because after my conversion my bike was at Harley for 2 months nobody could figure out why it wasn't running as good as it should, low and behold I used the stick ignition and it runs like it's on rails except that classic idle . So take my word for someone who's been there, u have nothing to loose. It's simpler than people make it out to be
Interesting Chris, I may look into that, personally we have never had an issue with the Thunderheart ignition. Thanks for the feedback.
Yeah the thunderheart works but dosent run nearly as well as the stock efi computer and ignition. At least mine didn't . I swear ud never know this thing was carbed it's like a brand new bike I'm stunned . Look into it
Nice simple conversion,been put off buying injection model
Other than installation of the kit, anything that needs to be done for the twin tech fuel injection controller? Thank you in advance
That is spectacular! I see that you’ve fitted it on a cable throttle bike, you know if they make them for electronic throttle?
There is no reason it wouldn't work for a fly-by-wire bike, you'd obviously need to add throttle sleeve, grip and cables but otherwise I can't see a problem.
Cool 😎 my 2011 fxdc cumin on Monday, this is the first thing, I’ll be doing 🤙🤙
Andy that seems to be the best way to go Mate when the EFI goes wrong. I am seriously considering doing this install but can i keep the stock speedo?
The reason i ask is because one wire from the stock speedo goes to the stock ECU. Not sure what this is for but i don't want to lose the speedo you understand.
Since you made this video the Altmann Ignition seems to be getting popular. What is best in your opinion? Altmann or Thunderheart?
Kind regards. Ian W.
about how much is that conversion?
So there's no mention of what inlet manifold you used ?
Good day, I have the same problem with my Road King 1999 Twin Cam with Magnetti Marelli ignition system and it is a rubbish, the Thunder Heart ignition system is COMPATIBLE with that year ??? And what brand of petcock did you use ??? Thanks and Great video
Hi Antonio, the Thunder-heart system is completely stand alone, all it uses from the bike is the CPS crank position sensor, and then you just supply a 12v feed and ground. we used a Pingel tank adaptor and a re-pro of a Harley fuel tap
@@andyforbes-buckingham1183 Then the thunder heart ignition system is compatible with that year, excellent news Andy, I thank you very much for your prompt response, I will continue to see your excellent videos and I am already subscribed in your channel, many thanks again, greetings from Mexico
Antonio you're very welcome.
Antonio, try adjusting MM EFI, heres the link, this adjustment is also explained in the HD manual if you have one.
th-cam.com/video/bY6Pw8WpSfc/w-d-xo.html
Same here 1999 Road King Classic…..
Planning on doing this same exact fix…
Would anyone have a parts list of all the parts needed..
Thanks for posting this much needed info…!
Beautiful.... I will be doing this to my 2016 eventually
Got a new to me 2000 harley 88ci softail, its sat for 2.5yrs from a divorce, running a unknown big bore kit, s&s super e, and ive just lost spark on a delphi 4 wire coil, im not familiar with this setup, any help qould be appreciated. I cleaned the tank and carb, rode it home (2 miles) after a lengthy jump start. Didnt smoke, no ticks, only fault was poor idle, attribute that to carb varnish.
Hello, I was wondering if you've found a way to put the engine management light out at all.
Tell me more. Are you saying you have an Engine Management light on with a Thunderheart?
Good job
Will I need new throttle cables for a 01 ride glide to go from mm to cv40
Do you have the video that's shows a efi to carb conversion?
Can I do that but reverse with a carb 88ci motor and my fuel injection 88ci intake and run it
theres a bit more missing from this project like the manifold setup and showing the ignition setup >whats required ..just me 2 cents..
We try not to make the vids overly complex or too long as people get board! it's more the process than a step by step guide, but thanks for the feedback, comments noted
Love to do my sportster 1200 custom that way
Have you ever done this with the 1995 electra glide that has the two interior steel lines? One pressure and one return. Whats the best way to remove them so i can use the adapter?
Hi Kyle, to date all our conversions have been on Delphi systems, obviously you need to install the tap and those steel lines will present a problem, I reckon it would have to be a case of drilling it out to allow the fuel taps filter sufficient clearance, go little and often and take care.
Did you figure anything out on your ‘95? I’ve got a ‘96 and the MM fuel injection is dog shit.
@@electricstartclint I dont have the parts list handy but got everything off Amazon and Ebay..ignition to old style electronic and coil intake manifold and carb plus intake mounts pringle? Adapters for pressure and return and petcock (bikers choice) Is cheaper then pingle's by $70 cv40 carb on ebay $58 brand new ignition $120 new intake manifold new $60 intake flanges $40 new..hope this helps
@@electricstartclint forgot to say mine is a 1998 Electra Glide ultra classic fi so 1998 flhtcui that is getting put to carb so it will be a 1998 flhtcu
@@dodgejohnson5819 can I message you some questions
getting ready to do my 97 road king do i have to get new throttle cables
No you can use the stock cables
Did you make any changes to throttle cables
I love the fuel injection system for complete reliability but I miss the carburetor Lope....how did it affect performance?
The performance was just fine, if anything it is more responsive. It also gives the bike a more organic feel.
Wait, will this work on magnetic morelli efi? The censors are different aren’t they?
It still uses a crank position sensor which the is all the Thunderheart requires to work
What about the jetting?
so
i just picked up a 2011 flh that was totaled and sold by insurance for what equals to 125 dollars
it will need an intire wiring harnessand , tires paine and few more things
the question is
can I get an old harness from carbs days and use it with this set up where the bike will be simple like the old days
just an fyi the bike was not in an accident
it was burnt but nothing wrong with the engine itself missing the gauges and the headlights
thinking to dump the fairings and keep it somewhat like a fatboy if you get my drift
Yes it'll work along side an older style loom assuming you can find one, I believe there are reproduction looms available through the aftermarket suppliers.
Does doing this make you check engine light come on??
Yes it does, we are working on a way to over ride it but to date we can't do it without losing the speedo.
@@andyforbes-buckingham1183 leave me your number
Would this work for my 2012 FXDC? I keep getting a code V INERR on hot starts and the dealer cant find anything wrong with it.
do you have to upgrade ignition or can i use stock ignition
Yes the ignition has to be upgraded as the FI (fuel injection) ECM will not work with the majority of the sensory devices missing. We have used a Thunderheart ignition here which is shown in the video, there are others on the market but this one is well priced and easy to use.
Nice work andy,what manifold did you use for the carb,I’m trying to fit one onto my 103”,
What does the conversion cost for the guff needed mate
Thinking of going this way myself
The Thunder Heart ignition currently runs out at £370 A full Mikuni HSR42 carb kit £820 Fuel tap and fitting £55 All available from this store!
Does iT work on a 2008 flh . The bike spluttering when i pull throttle full open . Code p0108 map sensor . I check wiring and put 350$ of parts (map sensor , idle air control sensor, idle speed sensor, intake gasket, fuel pump and regulator) check all wiring ,crank sensor . The bike still had problem on acceleration and run so poor that it's not riddebale For me . I Read all blogs and stuff . I didn't change the injector but i think i had enough of efi .. people were telling me to not Buy an efi and i should had listen because nobody knows what they Do with those bike . Or Nobody's available . Invest 10000$ on that bike i want to go ride .
Somebody please tell me here I'm about to swap my 2008 fuel injector sportster nightster to 2006 carburettor streetbob , what's pros & cons of it please ? Should I go for the bob ? Or stay with the sporty
They are very different bikes, I have a 2002 Dyna FXDX and have been very happy with that, I'd go with streetbob
Looking for a carb kit conversion for a Milwaukee 8 :)
We've not been asked to do an M8 yet but the inlet manifold spacing is very similar to both TC and Evo so in principle it could use the same products.
How much is the stand alone ignition or where can I get one....please
The unit runs out at £360 and we can supply and ship. check out the link www.afbmotorcycles.co.uk/performance/ignition/thunder-heart-performance-tc-ignition-module
Same process for a sporty? Done with my efi garbage...
Short and too the point
Can I have a list of jobs step by step?
Fernando what model do you have?
i cant find that carburetor kit anywhere. could you give a part# for that? all i can find is the s&s kit. thanks
Our kits come through Zodiac, their part number is 720542, we can supply and ship?
I just realized u r in the Netherlands. I'm in the US.
@@darrinclem2502 No I'm in the UK
How to get contact with u
Thanks for skipping over the most crucial parts of this install.I was afraid you might have shown how to do this conversion,then I too could do mine..
Hey! Does the speedometer and tach still work? Any check engine light? I have many questions and want to do this kit really bad.
Yes the speedo and tacho still work but it does leave the engine lamp on, we tried to disconnect it but it stopped the speedo from working, perhaps it was because we disconnected from the clock end, we are going to try from the ECU to see if we can loose the light.
@@andyforbes-buckingham1183by engine lamp do you mean check engine light? Just trying to clarify. Ty!
👍🏼👍🏼👍🏼👍🏼👍🏼
Step one it is easier to replace the fuel tank what's a carburetor operator tank save the old one
You can replace the fuel tank if you wish but there is nothing done to the original tank that can't be undone...
????????????????????????? .. W T F ????.......
??