Page 1 of 2 12 LastLast
Results 1 to 10 of 15

Thread: alternative Method of Accessing O2 Sensor on XB Models

  1. #1
    Senior Member
    Join Date
    Jan 2010
    Posts
    291
    The conventional method for accessing the O2 sensor is to perform the engine rotation procedure. An alternative procedure is to access the sensor through the cooling fan opening.

    1. Place flat jack under rear muffler straps and raise bike to allow rear suspension to relax to a neutral tension
    2. Remove lower shock mounting bolt
    3. Raise rear of bike fully to allow swingarm to drop as far as possible
    4. Remove rear shock upper mounting bolt
    5. For Firebolt models, gently ease shock absorber/spring assembly downward and turn sideways to lie across rear fender. Place a shop towel between shock assembly and rear fender for cushion.
    6. NOTE For both Lightning and Firebolt, it is NOT necessary to disconnect the accumulator hose or unfasten the shock reservoir.
    7. For Lightning models, ease shock assembly upwards to lie across tail section. Use a shop towel as a cushion to protect the components.
    8. Remove fan mounting torx fasteners
    9. Extract fan with a slight clocking motion disconnect wiring plug and set aside
    10. O2 sensor is now accessible through the opening
    11. NOTE During reassembly, take special care to avoid trapping or pinching O2 sensor wire between fan housing and frame

    TORQUE- O2 SENSOR 40-45 FT LBS

  2. #2
    Senior Member
    Join Date
    Aug 2008
    Posts
    5,146
    Nice.

  3. #3
    Senior Member
    Join Date
    Jan 2010
    Posts
    291
    Hope this helps this will save you lots of time.

  4. #4
    Senior Member
    Join Date
    Oct 2007
    Posts
    140
    Thanks for the instructions. I'm going to print them out along with the engine rotation instructions and put them in my XB file.

  5. #5
    Senior Member
    Join Date
    Aug 2008
    Posts
    360
    Definitely saving both for future use. Thanks again!

  6. #6
    Senior Member
    Join Date
    Jan 2010
    Posts
    291
    This is some more information I found that I thought would go good with this post.

    O2 sensor company part numbers

    02 sensor for buell XB from GM delco #25162693
    GM OEM= 8990469 superseded to 25162693
    Bosch= 12014
    Walker= 250-21001
    Denso= 234-1001
    Airtex= 553071
    SNG= SN1-15
    NTK= 21002

  7. #7
    Junior Member
    Join Date
    Feb 2010
    Posts
    26
    I've tried rotating the fan clockwise but still can't get the fan out. Any suggestions who be appreciated.

  8. #8
    Senior Member
    Join Date
    Mar 2010
    Location
    Maumee, OH
    Posts
    669
    I moved the fan down enough that there was room at the top to get the socket in and swap the O2 sensor out. I left the fan on the bike but just wiggled it down on my 2009 XB12R to make room.

    Also the more the rear tire drops the more room you have to move the fan out of the way.

  9. #9
    Junior Member
    Join Date
    Feb 2010
    Posts
    26
    I'm find it hard to move in any direction

  10. #10
    Senior Member
    Join Date
    Mar 2010
    Location
    Maumee, OH
    Posts
    669
    Did you move the shock out of the way and the rear tire is hanging all the way down? Is the fan wiring disconnected?



Page 1 of 2 12 LastLast

Similar Threads

  1. an alternative?
    By thrstrmech in forum Buell Lightning XB12S, XB12Ss, CityX, XB12Scg
    Replies: 44
    Last Post: 10-20-2014, 12:35 AM
  2. Set Timing - Static Method
    By jetlee in forum Stock
    Replies: 0
    Last Post: 03-13-2012, 10:58 PM
  3. Accessing the battery
    By JiminMT in forum General Motorcycle Chat
    Replies: 3
    Last Post: 12-05-2011, 03:49 PM
  4. Changing front pads - preferred method
    By misternikko in forum Buell Lightning XB12S, XB12Ss, CityX, XB12Scg
    Replies: 19
    Last Post: 06-13-2011, 12:13 PM
  5. anybody have a cool-down method?
    By kajer in forum General Motorcycle Chat
    Replies: 7
    Last Post: 05-10-2009, 07:26 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •