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7th December 2015
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Biker
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Join Date: Dec 2015
Posts: 32 Sportster/Buell Model: M2 Sportster/Buell Year: 1997
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2009 XB12 engine in M2 frame.
Hi i'm putting a XB12 engine in my '97 M2 frame.
I don't want to use the injection, but use my Mikuni HSR42 carb.
Anybody knows how to run a stand alone ignition on the engines?
This is how she looked before:

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7th December 2015
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Chief Harley Engineer
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Join Date: May 2015
Posts: 595 Sportster/Buell Model: XLCH Sportster/Buell Year: 1968 Sportster/Buell Model #2: XB12X Sportster/Buell Year #2: 06 Other Motorcycle Model: XLCH Other Motorcycle Year: 65
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You're not going to run anything designed for a cone engine as you have nowhere to mount it, options are slim to nonexistening.
The front mount looks like it close to being where it need to be, swingarm pivot looks way off.
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7th December 2015
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Biker
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Join Date: Dec 2015
Posts: 32 Sportster/Buell Model: M2 Sportster/Buell Year: 1997
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Yes, enine mounts are not the problem. The ignition is.
I found this link: http://www.amm.haan.de/EFI_to_carb_X..._XL_models.htm
It uses the CPS for ignition. Shoud thid fit mu engine? In other words, are the XL and XB cranks the same?
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7th December 2015
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Chief Harley Engineer
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Join Date: May 2015
Posts: 595 Sportster/Buell Model: XLCH Sportster/Buell Year: 1968 Sportster/Buell Model #2: XB12X Sportster/Buell Year #2: 06 Other Motorcycle Model: XLCH Other Motorcycle Year: 65
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Sound like that would do the job, interesting.
You going to stick around for your build? I would love to follow along. Good luck!
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7th December 2015
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Biker
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Join Date: Dec 2015
Posts: 32 Sportster/Buell Model: M2 Sportster/Buell Year: 1997
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I just had a mail from Haan that their ignition works on this engine.
I will keep you all informed.
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7th December 2015
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A Million Facts & Figures
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Join Date: Jan 2005
Location: Famous Potatoes
Posts: 10,508 Sportster/Buell Model: XL883 Sportster/Buell Year: 2007 Sportster/Buell Model #2: Buell Cyclone Sportster/Buell Year #2: 1999
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Why couldn't you use a TC88A?
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7th December 2015
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XL Forum Gold Supporting Vendor
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Join Date: May 2005
Posts: 0
Reputation: 48

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Quote:
Why couldn't you use a TC88A?
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Does an XB12 use exactly the same voltage signals to the ECM as a sporty uses to the ignition? I am not trying to bust on you, trying to learn something as you know a lot more about electronics than I do, especially where computers are concerned.
Last edited by NRHS Sales; 7th December 2015 at 17:14..
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7th December 2015
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Biker
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Join Date: Dec 2015
Posts: 32 Sportster/Buell Model: M2 Sportster/Buell Year: 1997
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Quote:
Originally Posted by aswracing
Why couldn't you use a TC88A?
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Good question. Never heard of it. Does it work with only CPK?
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7th December 2015
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Biker
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Join Date: Dec 2015
Posts: 32 Sportster/Buell Model: M2 Sportster/Buell Year: 1997
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Quote:
Originally Posted by NRHS Sales
Does an XB12 use exactly the same voltage signals to the ECM as a sporty uses to the ignititon?
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I did some searching on internet. Looks like a good ignition for my setup. Only thing that worrie me is the MAP sensor.
Can i use the sensor that's connected to my M2's carb od do i need one from a xl1200?
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7th December 2015
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XL Forum Gold Supporting Vendor
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Join Date: May 2005
Posts: 0
Reputation: 48

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If the voltages are the same the map sensor should be easy. Just get a carb manifold and map sensor for a 2004-2006 sportser.
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