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  • upaero's Avatar
    03-30-2021, 05:38 PM
    upaero replied to a thread NRHS Stage 2 for 07 XB12R in Race Kits
    Actually, in open loop the ECM will not correct for a lean or rich condition. However, the O2 sensor can still be active to inform you about sensed...
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    76 replies | 11715 view(s)
  • upaero's Avatar
    03-26-2021, 02:52 PM
    upaero replied to a thread NRHS Stage 2 for 07 XB12R in Race Kits
    Why tune to 14.7 to accommodate a narrow band O2 sensor? It will run cooler and have better throttle response at about 14.2. Plus, those sensors...
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    76 replies | 11715 view(s)
  • upaero's Avatar
    03-26-2021, 04:39 AM
    upaero replied to a thread NRHS Stage 2 for 07 XB12R in Race Kits
    Instead of running CL for economy, I suggest changing your AFR targets in the cruise range to about 14.2. If you run CL you run the risk of the ECM...
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    76 replies | 11715 view(s)
  • upaero's Avatar
    03-26-2021, 04:32 AM
    upaero replied to a thread NRHS Stage 2 for 07 XB12R in Race Kits
    The FP10153 regulator you listed is the same as stock. If you want 58 PSI (4 bar) the Walbro 135-22 is an option.
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    76 replies | 11715 view(s)
  • upaero's Avatar
    03-26-2021, 04:22 AM
    upaero replied to a thread Stumbles at speed in Buell Ulysses XB12x
    If you have a damaged ECM (common with Ulys) you can expect a laundry list of stored codes. You can either fire the parts cannon at it or do some...
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    10 replies | 383 view(s)
  • upaero's Avatar
    03-26-2021, 04:04 AM
    upaero replied to a thread How to diagnose most Buell EFI problems in Troubleshooting
    Technically you can, but your pump is already regulated by a mechanical fuel pressure regulator so the sensor data would only be good to look at. ...
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    11 replies | 474 view(s)
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About upaero

Basic Information

About upaero
Biography:
Have owned Buells since 1999 when I bought my M2. Now own 1125CR, XB12 and a Nightster as well.
Location:
Boynton Beach, FL
Interests:
Things with engines, things that fly and/or go fast.
Occupation:
Aircraft Technician/Consultant

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04-13-2021 10:24 PM
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08-15-2015