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Thread: Throttle Body Synchronizer

  1. #1
    Registered User 39520's Avatar
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    Throttle Body Synchronizer

    Hi: anyone care to recommend, from experience, a good TBS? I'm going to use it on my K12S.

    Thanks!

  2. #2
    IBA #44567 Ken F's Avatar
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    I would recommend the new "harmonizer".

    much easier to use.

    Ken
    IBA #44567
    "Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe."
    -Albert Eienstein

  3. #3
    They call me Gort scootrp125x's Avatar
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    I own and use a Twin Max. I bought a Harmonizer a couple of months ago but haven't had time to try it out and compare the two.
    04 R1150RT

  4. #4
    Registered User David13's Avatar
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    I have the Harmonizer. Simple, easy to use, really a nice device.
    There have been those who say it is, or cannot be as accurate as the fluid type system.
    I do not believe that. The modern computer type systems are far more accurate than the old manual systems on cars and motorcycles.
    And I suspect with a device like this, it is actually more accurate.
    I have heard anecdotal accounts of it being tried at BMW dealers, and they found it was just as accurate as their systems.
    Check advrider for Grok and his Harmonizer.
    dc

  5. #5
    Registered User Woodbutcher's Avatar
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    I too, have the Harmonizer. Just got is a couple of weeks ago and haven't used it in anger yet, but did fiddle with it. I'm swapping the front tire this weekend so since I'll be playing mechanic then I'll go ahead and try syncing the TB with it.
    Rusty
    Austin, TX
    Two Wheeled Texans
    2009 R1200GSA

  6. #6
    Debbie's Servant Lee's Avatar
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    I've never done a TBS on a K bike.
    Lee 2011 K1300S
    MOA # 30878
    Past BMW Bikes, 2003 K1200RS, 1991 K75S, 1987 K75T, 1984 R100RT

  7. #7
    Registered User lmo1131's Avatar
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    Harmonizer here. +1

    Really versatile tool, and it has a built in tach (and you can signal helicopters with it (really)).

    http://advrider.com/forums/showthread.php?t=692535
    "It is what you discover, after you know it all, that counts." _ John Wooden

    Lew Morris
    1973 R75/5 - original owner

  8. #8
    God? What god? roborider's Avatar
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    I use a Twin Max, works great. But the Harmonizer looks cool. I'd likely buy that over the Twin Max if I didn't have a tool already. But, the argument that the liquid tools are better than the digital tools doesn't hold water for me. If it is true that they are more accurate, then in my opinion, that higher degree of accuracy is not needed because I'm always pleased with the results on my RT and /6.
    Rob C. , Raleigh, NC
    '10 R12RT, R90/6
    2007 CBR600RR & 09 V-Star
    Suzuki DR 350

  9. #9
    Registered User stanley83's Avatar
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    My thoughts

    I started with the $4.00 synchronizer, which worked well, but one needs to be careful if the carbs are way out of balance or the fluid will be sucked into the engine. You also need a good place to hang the thing.

    I tried the Twinmax at a tech day and found the ergonomics wanting. I kept hitting the zero knob and having to re-calibrate. I've spoken to others with the same complaint.

    I picked up a Harmonizer at the intro price and have been happy so far. Self-zeros, no controls to bump, easy to read and I'm able to locate the box where I can see it while lying under the bike to reach the carb screws.
    Justin in Somerville, MA
    _________________________
    76 R75/6, 78 P200E, 63 VBB
    Lots of bicycles

  10. #10
    God? What god? roborider's Avatar
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    Quote Originally Posted by stanley83 View Post

    I tried the Twinmax at a tech day and found the ergonomics wanting. I kept hitting the zero knob and having to re-calibrate. I've spoken to others with the same complaint.
    I've done that! Fortunately, it only takes a second to re zero. But again, just looking, the harmonizer looks very cool Anyone want a used Twin Max at a 50% discount so I can buy the Harmonizer? I like new toys!
    Rob C. , Raleigh, NC
    '10 R12RT, R90/6
    2007 CBR600RR & 09 V-Star
    Suzuki DR 350

  11. #11
    Debbie's Servant Lee's Avatar
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    The OP has a K1200S (4 cyl)
    Someone correct me if I'm wrong, but you don't need to do a throttle body synch on a 4 cyl. K bike.
    We've put close to 500,000 miles on K bikes and none of them have ever needed a throttle body synch.
    Lee 2011 K1300S
    MOA # 30878
    Past BMW Bikes, 2003 K1200RS, 1991 K75S, 1987 K75T, 1984 R100RT

  12. #12
    3 Red Bricks
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    I use a MotionPro SyncPro:

    http://www.ebay.com/itm/MOTION-PRO-S...9#ht_557wt_689

    It's for up to 4cyl. Easy to use.



    LONG MAY YOUR BRICK FLY!

    Ride Safe, Ride Far, Ride Often

    Lee Fulton Forum Moderator
    3 Marakesh Red K75Ss
    Mine, Hers, Spare

  13. #13
    Debbie's Servant Lee's Avatar
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    I found an old thread on the subject at I-BMW.

    http://www.i-bmw.com/showthread.php?...tle+body+synch
    Lee 2011 K1300S
    MOA # 30878
    Past BMW Bikes, 2003 K1200RS, 1991 K75S, 1987 K75T, 1984 R100RT

  14. #14
    3 Red Bricks
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    Quote Originally Posted by Lee View Post
    I found an old thread on the subject at I-BMW.

    http://www.i-bmw.com/showthread.php?...tle+body+synch
    That thread contains some VERY bad suggestions and info!


    NEVER, NEVER, NEVER touch or adjust the linkage between the throttle bodies!!!!!!!!!

    A throttle body adjustment on a Kbike involves ONLY adjusting the large brass air bleed screws on each throttle bore.

    NEVER attempt to adjust the butterflies, just adjust the air bypass screws.

    This primarily affects idle smoothness. Messing with the butterflies WILL screw it up over the entire range.






    LONG MAY YOUR BRICK FLY!

    Ride Safe, Ride Far, Ride Often

    Lee Fulton Forum Moderator
    3 Marakesh Red K75Ss
    Mine, Hers, Spare

  15. #15
    Debbie's Servant Lee's Avatar
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    Quote Originally Posted by 98lee View Post
    That thread contains some VERY bad suggestions and info!


    NEVER, NEVER, NEVER touch or adjust the linkage between the throttle bodies!!!!!!!!!
    I need to go back and read all of it again, I didn't see where someone said to adjust the linkage.
    What I got out of it, was because of the mechanical linkage, the throttle bodies stayed in sync, unlike the boxer engine.

    To me, posts 5 and 6 in the link are good points.
    Lee 2011 K1300S
    MOA # 30878
    Past BMW Bikes, 2003 K1200RS, 1991 K75S, 1987 K75T, 1984 R100RT

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