BST idle mixer screw adjustment tools

Discussion in 'Thumpers' started by loud640, Apr 13, 2005.

  1. Arch

    Arch Incurable Gearhead

    Joined:
    Dec 30, 2001
    Oddometer:
    11,706
    Location:
    Katy, TX
    Fellas, there's a thread over in Equipment right now about this very topic. The Motion Pro's bit doesn't stick out much and on my BST at least, it won't reach the fuel screw. In the other thread, though, Steve Knapp mentioned shaving the plastic handle some to allow the bit some extra reach, and this makes perfect sense. It shouldn't take much at all and I'm gonna try it on mine later today.
    #21
  2. Loadedagain

    Loadedagain making chips

    Joined:
    Jan 1, 2003
    Oddometer:
    26,763
    Location:
    West Vancouver, BC
    ok guys... i at least got off my butt and drew the thing today. i'll make a few tonight and do some tests on my bike and creepers this weekend... does it look long enough?

    lemme know if you'd like to see anything different.

    [​IMG]
    #22
  3. Arch

    Arch Incurable Gearhead

    Joined:
    Dec 30, 2001
    Oddometer:
    11,706
    Location:
    Katy, TX
    Thanks for the efforts, Colin. One handy thing (if it ain't too tough to add in) would be numbers on the adustment knob to help track turns, sorta like Zip-Ty Racing's FCR screw. Just an idear.
    #23
  4. meat popsicle

    meat popsicle Ignostic

    Joined:
    Feb 9, 2004
    Oddometer:
    14,567
    Location:
    Circumlocution Office of Little Dorrit
    good idear Arch!

    ps - my motion pro screwdriver reaches my BST idle screw great - maybe its because I have the model with the clear handle w/ red stripes? :dunno if they are different...
    #24
  5. creeper

    creeper Still alive...

    Joined:
    Dec 13, 2003
    Oddometer:
    10,718
    Location:
    Puget Sound
    [​IMG] [​IMG]
    #25
  6. Loadedagain

    Loadedagain making chips

    Joined:
    Jan 1, 2003
    Oddometer:
    26,763
    Location:
    West Vancouver, BC
    jeemabus that's long.... about the right length? i only made mine stick out 15 mm, but that looks like 30 or so... whadayathink? should i make mine the same length?
    #26
  7. Arch

    Arch Incurable Gearhead

    Joined:
    Dec 30, 2001
    Oddometer:
    11,706
    Location:
    Katy, TX
    I think you're way's better. No need to have all of that hanging down. :nod
    #27
  8. loud640

    loud640 I like beer!!

    Joined:
    Mar 31, 2005
    Oddometer:
    33
    Location:
    Alicante, Spain
    I reckon shorter is better, the red one looks waaay too long to me.
    #28
  9. Loadedagain

    Loadedagain making chips

    Joined:
    Jan 1, 2003
    Oddometer:
    26,763
    Location:
    West Vancouver, BC
    well... i'm gonna be at creepers place this weekend so i will compare the two then. me thinks you guys are right.
    #29
  10. Velocibiker

    Velocibiker Adventure Antagonist

    Joined:
    May 28, 2003
    Oddometer:
    1,164
    Location:
    Las Vegas, NV
    I take it the taper and all match the OE screw? All you're doing is adding length and a knob.

    Excellent!! Is it going to be orange?? :wink:

    Although I haven't had any need to futz with it so far (once set and happy), having the ability to easily make adjustments should the need arise is always a good thing.
    #30
  11. Loadedagain

    Loadedagain making chips

    Joined:
    Jan 1, 2003
    Oddometer:
    26,763
    Location:
    West Vancouver, BC
    yup
    we be makin it pimpin annodized doode :nod
    same here.... but these guys are all cryin for one so i guess i better make 'em.
    #31
  12. creeper

    creeper Still alive...

    Joined:
    Dec 13, 2003
    Oddometer:
    10,718
    Location:
    Puget Sound
    It does stick out a bit more than whats really needed. :lol3

    [​IMG]
    #32
  13. creeper

    creeper Still alive...

    Joined:
    Dec 13, 2003
    Oddometer:
    10,718
    Location:
    Puget Sound
    Yep... handy for two reasons. To get it dialed in while the bike is running (hard to do unless you have asbestos hands) and to make minor tweaks for tuning and/or major elevation changes.
    #33
  14. creeper

    creeper Still alive...

    Joined:
    Dec 13, 2003
    Oddometer:
    10,718
    Location:
    Puget Sound
    So I went out and grabbed hold of the FCR one and tried to imagine it a bit shorter... yep, it could easily be 15 and maybe 20mm shorter and not be a bit difficult to get to.
    #34
  15. Arch

    Arch Incurable Gearhead

    Joined:
    Dec 30, 2001
    Oddometer:
    11,706
    Location:
    Katy, TX
    Yep, that's the only reason for me. Here at home (mostly near sea level) I never touch the thing, but regularly swap jetting & idle mixture settings when I haul it out to the higher elevations we like to visit a few times a year.

    :thumb
    #35
  16. Loadedagain

    Loadedagain making chips

    Joined:
    Jan 1, 2003
    Oddometer:
    26,763
    Location:
    West Vancouver, BC
    :clap i will have a "prototype" in hand on saturday.
    #36
  17. creeper

    creeper Still alive...

    Joined:
    Dec 13, 2003
    Oddometer:
    10,718
    Location:
    Puget Sound
    "prototype"... sexy. :evil
    #37
  18. loud640

    loud640 I like beer!!

    Joined:
    Mar 31, 2005
    Oddometer:
    33
    Location:
    Alicante, Spain
    I live about sea level, but I want to take my bike into the hills to fill my days. They look pretty big to me, I rckon I'll need to fine tune along the way.

    [​IMG]
    #38
  19. Velocibiker

    Velocibiker Adventure Antagonist

    Joined:
    May 28, 2003
    Oddometer:
    1,164
    Location:
    Las Vegas, NV
    But but but....how much "fine" tuning do you need? It's not like you're in some sort of race and every 1/10 of a second counts. So what if it runs too rich for a couple days? OWTF. I give up. I guess I'm just some backassward ijut who just doesn't understand the finer complexities of BST tuning :huh

    I'm a BST heathen I tell ya!! A HEATHEN!!!!!

    :eek1 :eek1 Forgive me for I have sinned against the BST! I'll go say about 50 "Hail Mikuni's" and I'll be OK.......Quick, spray me with some of that holy carb cleaner just in case!!! :lol3
    #39
  20. loud640

    loud640 I like beer!!

    Joined:
    Mar 31, 2005
    Oddometer:
    33
    Location:
    Alicante, Spain
    You are (of course) quite correct. I will probably only use this fairly rarely (Although it is possible that the wide temperature & altitude variations will make this a quite regular task) . But when I want to adjust the mixture it will make a lot easier :D

    And I do love to play with stuff like this. I really should ride more instead :wink:
    #40