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Thread: My DIY Throttle Body Sync

  1. #1
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    My DIY Throttle Body Sync

    It's always fun to be a MacGyver, so I thought I would share pics of my latest project: a home-made manometer for DIY balancing of throttle bodies.

    Baby's running MUCH smoother now, especially in the 3-4,000 rpm range!
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    2004 R1150R 80th Anniversary Edition, Blue w/Black Running Gear, 178K miles & counting!

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    Fortis Fortuna Adiuvat Omega Man's Avatar
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    Nice
    We used to use a similar contraption on the 4 cyl Hondas back in the day.
    OM
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    Registered User nyfty's Avatar
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    Ot

    This is off topic but nice R. I have an 04 just like it. Not many out there with that color combination.
    Jim Nyffeler
    Lincoln NE
    '10 F800GS, '04 R1150R
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    Sync Thing

    Quote Originally Posted by bullfighter View Post
    It's always fun to be a MacGyver, so I thought I would share pics of my latest project: a home-made manometer for DIY balancing of throttle bodies.

    Baby's running MUCH smoother now, especially in the 3-4,000 rpm range!
    Be carful if you use mineral oil in that they may think it's a medical device and hit you with the medical device tax!

  5. #5
    Quote Originally Posted by 179212 View Post
    Be carful if you use mineral oil in that they may think it's a medical device and hit you with the medical device tax!
    Do you mean mineral oil or castor oil?
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    rabid reader dbrick's Avatar
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    Very nicely done!
    David Brick
    Santa Cruz CA
    2007 R1200R

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    Registered User K7GLE's Avatar
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    Quote Originally Posted by bullfighter View Post
    It's always fun to be a MacGyver, so I thought I would share pics of my latest project: a home-made manometer for DIY balancing of throttle bodies.
    I used one of these for years on my airhead but it way too sensitive/jumpy for the oilhead so had to buy a real one one.
    - Glenn
    2000 R1100RT (current)
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    Registered User gilliedog's Avatar
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    Quote Originally Posted by bullfighter View Post
    It's always fun to be a MacGyver, so I thought I would share pics of my latest project: a home-made manometer for DIY balancing of throttle bodies.
    Okay bullfighter, how about a materials list?

    Cannot make out what the clips holding the tube next to the yard stick are in the picture or what the anti-kink radius piece is at the bottom.

    And what was the liquid? ATF?

    Need to run down to the hardware store now it looks like.

    Many Thanks

    GD

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    Registered User GTRider's Avatar
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    Quote Originally Posted by K7GLE View Post
    I used one of these for years on my airhead but it way too sensitive/jumpy for the oilhead so had to buy a real one one.
    I used one for years on my R1100RSL, as a final fine-tune after getting a rough balance with mercury stix. Since you are working one side against the other, all differences are magnified by 2 so yes, it can seem jumpy or sensitive. That can be fixed by adding a small restrictor in each line, like a fitting with a smaller hole.

    Best,
    DG
    DGerber
    1983 R80ST -- 1988 R100GS "Bee"-- 2004 K1200GT w/Hannigan S/C -- 2010 K1300GT
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    Quote Originally Posted by gilliedog View Post
    Okay bullfighter, how about a materials list?

    Cannot make out what the clips holding the tube next to the yard stick are in the picture or what the anti-kink radius piece is at the bottom.

    And what was the liquid? ATF?

    Need to run down to the hardware store now it looks like.

    Many Thanks

    GD
    I don't recall the diameter of the tubing, but I bought 15 feet of it at the local DIY Center (used to be "Do-It Center"). I looked at a few YouTube videos for inspiration, they said to make sure the length of the tubing is equal on both sides from the radius out.
    The clips are leftover cable clips I had for running cable up a wall.
    For the anti-kink at the bottom, I used a plastic cap from a jar of vitamins (super high-tech, I know!)
    And yes, the liquid is ATF (which is vegetable-based oil, so not subject to medical equipment tax, LOL!)
    And to top it off, I screwed a couple of eyelets into the top of the 2x4 to hold the tubes when not in use.

    20171113_174714.jpg20171113_174729.jpg20171113_174756.jpg
    2004 R1150R 80th Anniversary Edition, Blue w/Black Running Gear, 178K miles & counting!

  12. #12
    Registered User gilliedog's Avatar
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    Quote Originally Posted by bullfighter View Post
    I don't recall the diameter of the tubing, but I bought 15 feet of it at the local DIY Center (used to be "Do-It Center"). I looked at a few YouTube videos for inspiration, they said to make sure the length of the tubing is equal on both sides from the radius out.
    The clips are leftover cable clips I had for running cable up a wall.
    For the anti-kink at the bottom, I used a plastic cap from a jar of vitamins (super high-tech, I know!)
    And yes, the liquid is ATF (which is vegetable-based oil, so not subject to medical equipment tax, LOL!)
    And to top it off, I screwed a couple of eyelets into the top of the 2x4 to hold the tubes when not in use.
    Perfect. The close up picture was what I needed. Thanks.

    The tubing is all I need to pick up. Have everything else already.

    I will be fashioning one very soon.

    GD
    (New to me) 2010 R1200RT after HD Electra Glides for 35 years

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    Quote Originally Posted by nyfty View Post
    This is off topic but nice R. I have an 04 just like it. Not many out there with that color combination.
    Thanks! I love this color combo too, it was quite the find
    2004 R1150R 80th Anniversary Edition, Blue w/Black Running Gear, 178K miles & counting!

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