Results 1 to 9 of 9

Thread: 2002 1150RT TB adjustment 32K

  1. #1
    Registered User
    Join Date
    Apr 2012
    Location
    Detroit Lakes, MN
    Posts
    27

    2002 1150RT TB adjustment 32K

    I've set my valves and am now ready to do TB adjustment. Shouldn't the left cable have a certain amount of slack? I did the adjustment last week but I couldn't seem to get the manometer to be even on both sides. The left hand side had no slack at all. I got all of the surging out of it but I have a vibration at 3200 RPM and no where else. Thanks ahead

  2. #2
    Registered User Olsensan's Avatar
    Join Date
    May 2008
    Location
    Adirondaks and LI,NY
    Posts
    460
    Do you have the manual?

    13 60 110 Checking freedom of throttle
    cable, checking for chafing and
    kinks, replacing if necessary Checking
    throttle-cable play, checking
    and adjusting idle speed and throttle-
    valve synchronisation
    (Inspections I, II and III)
    • Test-drive the motorcycle until the engine is
    warm.
    • Remove the left side panel.
    • Remove the flap in the right side panel.
    Oil temperature: ..................at least 90 C (194 F)
    • Push back rubber cap (arrow) on throttle and
    choke cables.
    • Use the adjusting screws to adjust play of throttle
    and choke cables.
    Choke cable free travel:
    ........................................approx. 1 mm (0.0393 in)
    Throttle cable free travel:
    ........................................approx. 1 mm (0.0393 in)
    R21000340
    R22000320
    00.60
    • Turn the adjusting screws to adjust the play of
    the cables for the left and right throttle valves.
    Throttle cable free travel:
    ....................................... approx. 2 mm (0.0787 in)
    • Connect hose of BMW Synchro to vacuum
    adapter and connect cables to BMW MoDiTeC.
    • Start the engine.
    e Attention:
    Do not allow the engine to idle for longer than is necessary,
    because the trim panels near the exhaust
    could be damaged.
    • Adjust idle speed by turning the air bypass
    screws while checking that the carburettors are
    balanced.
    Idle speed: ........................................ 1,100 ??50 rpm
    L Note:
    Make sure that both throttle valves are closed.
    e Attention:
    Do not tamper with the sealed stop screws of the
    throttle valves, as otherwise the idle-speed volume
    flow will have to be reset by the manufacturer.
    • Carefully turn the adjusting screw of the left throttle
    valve and reduce play until the reading of the
    Synchro tester changes.
    • Turn the adjusting screw very slightly in the opposite
    direction until the reading returns to its
    original value.
    • Tighten the locknut to secure.
    L Note:
    Make sure that the reading does not change when
    you tighten the locknut.
    Adjust throttle cable play at throttle valve so that no
    play is perceptible, but the throttle valve reliably
    contacts the stop screw (no strain on cable).
    • Adjust the right throttle valve in the same way.
    L Note:
    Zero play can cause the throttle valves to rattle.
    • Use the adjusting screws (arrow) to adjust play of
    the throttle cables.
    Play of throttle cable:
    .....................................approx. 0.5 mm (0.0197 in)
    • Push the rubber cap into position over the adjusting
    screw.
    S000100
    R22000320

  3. #3
    Registered User
    Join Date
    Apr 2012
    Location
    Detroit Lakes, MN
    Posts
    27

    I got it

    Quote Originally Posted by OLSENSAN View Post
    Do you have the manual?

    13 60 110 Checking freedom of throttle
    cable, checking for chafing and
    kinks, replacing if necessary Checking
    throttle-cable play, checking
    and adjusting idle speed and throttle-
    valve synchronisation
    (Inspections I, II and III)
    ÔÇó Test-drive the motorcycle until the engine is
    warm.
    ÔÇó Remove the left side panel.
    ÔÇó Remove the flap in the right side panel.
    Oil temperature: ..................at least 90 C (194 F)
    ÔÇó Push back rubber cap (arrow) on throttle and
    choke cables.
    ÔÇó Use the adjusting screws to adjust play of throttle
    and choke cables.
    Choke cable free travel:
    ........................................approx. 1 mm (0.0393 in)
    Throttle cable free travel:
    ........................................approx. 1 mm (0.0393 in)
    R21000340
    R22000320
    00.60
    ÔÇó Turn the adjusting screws to adjust the play of
    the cables for the left and right throttle valves.
    Throttle cable free travel:
    ....................................... approx. 2 mm (0.0787 in)
    ÔÇó Connect hose of BMW Synchro to vacuum
    adapter and connect cables to BMW MoDiTeC.
    ÔÇó Start the engine.
    e Attention:
    Do not allow the engine to idle for longer than is necessary,
    because the trim panels near the exhaust
    could be damaged.
    ÔÇó Adjust idle speed by turning the air bypass
    screws while checking that the carburettors are
    balanced.
    Idle speed: ........................................ 1,100 ??50 rpm
    L Note:
    Make sure that both throttle valves are closed.
    e Attention:
    Do not tamper with the sealed stop screws of the
    throttle valves, as otherwise the idle-speed volume
    flow will have to be reset by the manufacturer.
    ÔÇó Carefully turn the adjusting screw of the left throttle
    valve and reduce play until the reading of the
    Synchro tester changes.
    ÔÇó Turn the adjusting screw very slightly in the opposite
    direction until the reading returns to its
    original value.
    ÔÇó Tighten the locknut to secure.
    L Note:
    Make sure that the reading does not change when
    you tighten the locknut.
    Adjust throttle cable play at throttle valve so that no
    play is perceptible, but the throttle valve reliably
    contacts the stop screw (no strain on cable).
    ÔÇó Adjust the right throttle valve in the same way.
    L Note:
    Zero play can cause the throttle valves to rattle.
    ÔÇó Use the adjusting screws (arrow) to adjust play of
    the throttle cables.
    Play of throttle cable:
    .....................................approx. 0.5 mm (0.0197 in)
    ÔÇó Push the rubber cap into position over the adjusting
    screw.
    S000100
    R22000320
    OK i got it. Both cables had less than 0 play so after adjusting the BBS's as I went to sync the cables it was changing the BBS setting on the manometer, now all is well.
    A question on my other bike, a /6. I have without this knowlege adjusted the factory set throttle valve settings. How might I reset those to the proper location? Thanks for all your help.

  4. #4
    Registered User texasmule's Avatar
    Join Date
    Oct 2011
    Posts
    21

    Question A little off tangent....

    I've done dozens of TB synchs on just about every oilhead boxer model made... but I've got a question.

    On my 2004 R1150RT, there's a hole in the right side body panel specifically for reaching the right BBS. It appears BMW was thoughtful enough to put that there so we could adjust our TBs w/o removing the tupperware.

    Unfortunately, (or I'm too stupid) I can't figure out how to reach the vacuum connections with the plastic on the bikes. I removed the cannister shortly after buying the bike, but I still can't reach the nipples.

    Is there a way to adjust the TBs with the GS911? (which I also have), or am I missing something?

  5. #5
    Registered User
    Join Date
    Jun 2003
    Location
    Northern Front Range, CO
    Posts
    6,324
    not at all familiar with using the GS911, but from my understanding, they are an electronic reader. As such, they would be incapable of reading vacuum pressure, which is what you have at those connection ports.
    Twinmax or similar.
    Ride Safe, Ride Lots

  6. #6
    Registered User texasmule's Avatar
    Join Date
    Oct 2011
    Posts
    21
    Quote Originally Posted by bikerfish1100 View Post
    not at all familiar with using the GS911, but from my understanding, they are an electronic reader. As such, they would be incapable of reading vacuum pressure, which is what you have at those connection ports.
    Twinmax or similar.
    Yes, I'm aware of Twinmax, been using it for over a decade. I just can't figure out how BMW intended a service technician to adjust the idle with the plastic on.

    I'd love to learn how to do it, would make minor adjustments easy.

  7. #7
    Registered User twinsig's Avatar
    Join Date
    Apr 2012
    Location
    Heart Of Dixie!
    Posts
    86
    Yes, i would too. Riding around naked is fine but then seem to"find" a tuning issue a day or two later and just say crap on it, I'm riding!
    Democracy is two wolves and a lamb voting on what to have for lunch
    Liberty is a well-armed lamb contesting the vote

  8. #8
    Registered User Olsensan's Avatar
    Join Date
    May 2008
    Location
    Adirondaks and LI,NY
    Posts
    460
    I have thought about the same question, how to access the vacuum ports on the TB. I thought what the heck, rather than have a plug on it, just extend the port with a short tube and plug it. That is the only way and you only get to mess with the right side BBS.

  9. #9
    Registered User texasmule's Avatar
    Join Date
    Oct 2011
    Posts
    21

    Mystery still remains

    OK, while performing my 24K service, I see where you can reach the
    right side vacuum port "nipple" by removing the "foot pad" (see diagram #3). But the
    left foot pad is not held on by a screw/bolt. It seems much more "permanent"



    It just gets curiouser, and curiouser....

Posting Permissions

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