Question regarding Screamin' Eagle kits
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Tourer
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From: Santa Barbara, CA
Question regarding Screamin' Eagle kits
I recently purchased a 2011 Crossbones from a dealer. It has a Screamin Eagle air filter mounted (as shown below). The exhaust is stock (I believe) Vance and Hines slip-ons. I'm very new to fuel injected motorcycles and still trying to learn the intricacies of ECU's and how they work. As I understand it, there are 4 stages of Screamin' Eagle upgrades.
MY QUESTION: How am I going to know what of the 4 stages available I have on this bike???
My other question is in regard to ECU's. I've owned one fuel injected bike (a Yamaha Raider) and I sent in that ECU to have it 'flashed' for max performance with that bike. All the Yamaha forums said this was the best option over and didn't require buying any aftermarket ECU or power commander. What advice can you readers offer a 'noobe' in regard to my ECU and what (if anything) I should do with it?
Thanks!
MY QUESTION: How am I going to know what of the 4 stages available I have on this bike???
My other question is in regard to ECU's. I've owned one fuel injected bike (a Yamaha Raider) and I sent in that ECU to have it 'flashed' for max performance with that bike. All the Yamaha forums said this was the best option over and didn't require buying any aftermarket ECU or power commander. What advice can you readers offer a 'noobe' in regard to my ECU and what (if anything) I should do with it?
Thanks!
Seasoned HDF Member
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From: Centennial, CO
You may be able to find out what has been done by tracing the VIN number through Harley's website. I don't know how to do this, just have seen in here it can be done. If it was done at a dealership, it should be logged into the site.
Tuners from Fuel Moto are better options than anything that H-D has to offer if you think it's needed.
For that matter, just about anything the aftermarket has to offer as far as performance equipment is better than the MOCO stuff.
Tuners from Fuel Moto are better options than anything that H-D has to offer if you think it's needed.
For that matter, just about anything the aftermarket has to offer as far as performance equipment is better than the MOCO stuff.
Last edited by QC; Apr 30, 2022 at 02:04 PM.
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From: San Diego, CA
If you want to know, the dealer can tell you if a dealer did the mods, AND entered it into the system... some dealers don't bother to put mods into their system, but since the EPA consent decree, it may be mandatory now..
If you have a tuner, you could read the tune number, and it would tell you what stage you have if it was an HD tune...
You could also do a compression test, dyno test, or other tests to check compression & horsepower... that would give you a clue
Other than that, you'll need to see receipts, or it'll have to be taken apart and the parts inspected...
If you have a tuner, you could read the tune number, and it would tell you what stage you have if it was an HD tune...
You could also do a compression test, dyno test, or other tests to check compression & horsepower... that would give you a clue
Other than that, you'll need to see receipts, or it'll have to be taken apart and the parts inspected...
Last edited by hattitude; Apr 30, 2022 at 06:46 PM.
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Tourer
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From: Santa Barbara, CA
Thanks for the info. I bought my used Crossbones from a Harley dealer here in Southern California, but the bike was bought by them from out of state (Arizona). I have no idea what Harley dealership might have done the Screamin' Eagle work, so I may be out of luck. I might just try randomly emailing dealers to see if I get lucky and they provide me a history, but it seems like a shot in the dark. I would be nice to know what has been done to the bike if I can figure out how to do so without taking the engine apart.
By the way, I found the plug that goes into the pipe (O2 sensor?) is unplugged and just hanging hidden under the oil tank. When I modified my Yamaha Raider V-twin, with new pipes and flashed the ECU there was no longer a need for the 02 sensor on that bike. I'm guessing this is the same scenario, that is the sensor on my Harley is unplugged due to the Screamin' Eagle mod? Anyone have the Screamin Eagle mod and can verify if the 02 sensor should be unplugged?
Thanks!
By the way, I found the plug that goes into the pipe (O2 sensor?) is unplugged and just hanging hidden under the oil tank. When I modified my Yamaha Raider V-twin, with new pipes and flashed the ECU there was no longer a need for the 02 sensor on that bike. I'm guessing this is the same scenario, that is the sensor on my Harley is unplugged due to the Screamin' Eagle mod? Anyone have the Screamin Eagle mod and can verify if the 02 sensor should be unplugged?
Thanks!
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Tourer
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From: Santa Barbara, CA
Seasoned HDF Member
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From: Sunshine State
You build something that screams, or you get by with what you have. In that case should have bought a carbed bike.
Last edited by Tampa Fatboy; May 1, 2022 at 03:44 PM.
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Best bet it is likely at best a stage 1. Other wise dealer would have bragged it up. Stage one does not do much. 2011 was not under the EPA agreement.
Stage 1 intake mufflers and maybe some fuel added with a tune. 02 wire hanging not a good sign.
Your best bet is to search for an Honest INDY that can look the bike over and give you a real world assessment of what you purchased. Sounding like you git an auction bike.
Good luck.with finding anything out .10 years old you have no idea how many owners. Dealer is not going to give you any real world information on it.
Stage 1 intake mufflers and maybe some fuel added with a tune. 02 wire hanging not a good sign.
Your best bet is to search for an Honest INDY that can look the bike over and give you a real world assessment of what you purchased. Sounding like you git an auction bike.
Good luck.with finding anything out .10 years old you have no idea how many owners. Dealer is not going to give you any real world information on it.
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Seasoned HDF Member
Joined: Sep 2008
Posts: 14,061
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From: San Diego, CA
T
By the way, I found the plug that goes into the pipe (O2 sensor?) is unplugged and just hanging hidden under the oil tank. When I modified my Yamaha Raider V-twin, with new pipes and flashed the ECU there was no longer a need for the 02 sensor on that bike. I'm guessing this is the same scenario, that is the sensor on my Harley is unplugged due to the Screamin' Eagle mod? Anyone have the Screamin Eagle mod and can verify if the 02 sensor should be unplugged?
By the way, I found the plug that goes into the pipe (O2 sensor?) is unplugged and just hanging hidden under the oil tank. When I modified my Yamaha Raider V-twin, with new pipes and flashed the ECU there was no longer a need for the 02 sensor on that bike. I'm guessing this is the same scenario, that is the sensor on my Harley is unplugged due to the Screamin' Eagle mod? Anyone have the Screamin Eagle mod and can verify if the 02 sensor should be unplugged?
Are the O2 sensors still in the exhaust and just unplugged, or do the O2 sensor ports in the exhaust have plugs in them....??
All HD tunes (at least on the old Delphi ECM, I have no knowledge of the new Delphi ECM) are partial Closed Loop (use O2 sensor feedback) and partial Open Loop (don't use O2 sensor feedback) tunes.
It is not uncommon to have a bike tuned with a completely Open Loop custom tune (no O2 sensor feedback).... But I believe most of those are more than just Stage I tunes...
if your bike has a tune that is all Open Loop, there is a good chance that it is more than just a Stage I... Meaning at least a drop-in cam or more..
Thread Starter
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Tourer
Joined: Mar 2022
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From: Santa Barbara, CA
I just don't want to run out and buy a tuner if this new (to me) bike has already been tuned to my liking.