Installing an Acewell speedo/computer on an airhead --

Discussion in 'Airheads' started by bpeckm, Nov 23, 2009.

  1. CurlyMike

    CurlyMike Formerly SaddleSoar

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    so, while someone else resurrected this thread, I have to ask...

    why hasnt anyone reto-fitted on of these into a /5 bucket. Are they that much smaller? If anyone has,can I see a pict or two...
    #61
  2. bmwhacker

    bmwhacker Still on 3 wheels

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    The Acewell has a digital readout and I've found that it needs to sit at a certain angle to be perfectly readable, especially at about sundown. My only beef so far is that the small indicator lights are a little hard to see under direct sunlight.
    Laying the Acewell flat in a /5 housing would likely render it unreadable.(?) But I never tried it...
    I really like the gauge so far. The speedo is dead accurate when calibrated and the two trip odometers are a good addition.


    Since this photo I tipped the housing back a tiny bit to find its' "sweet spot" for better visibility.
    [​IMG]
    #62
  3. anonny

    anonny What could go wrong?

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    Thats a really good point, I noticed on my bike that I will have to find a better angle for viewing.
    [​IMG]
    #63
  4. Beater

    Beater The Bavarian Butcher

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    That is my ONLY complaint about mine. I wound up heating the mounting arm so that I could bend it about 15 degrees ... this way the face would point directly at me. It's bizarre that the readability issue only happens in low light situations. Daytime it's perfect ... get to be dusk or after dark .. I would have to lower my head about 2 inches to see it.

    Oh and ... I wound up taking the three screws out that connect the mounting arm to the unit itself and putting on some Loctite :evil

    But beyond that ... I've been inpressed. The signal indicators are INFINATELY brighter than my stock speedo. Now I at least don't look like a complete noob riding down the road with a blinker on. :lol3

    PS - I know that this might start something ... but I haven't hooked my generator light up ... and my battery is charging nicely. Flame away ... (PS- about ~1500 miles since the Acewell install) ... Yes, I am going to do it ...
    #64
  5. getset

    getset go pop a wheelie

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    Anyone know of a source for purchasing one of these speedos? They seem to be out of stock everywhere.

    thanks.
    #65
  6. anonny

    anonny What could go wrong?

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    I got mine from the horses petuty http://www.acewell-meter.com/
    #66
  7. bmwhacker

    bmwhacker Still on 3 wheels

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    I got mine from "Electrosports" in Oceanside Ca. They shipped it out quickly. I was happy with their fast service. :thumb
    #67
  8. anonny

    anonny What could go wrong?

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    Thats odd, just looked and don't see the "put item in cart" option... I'm positive I bought it off their website in December. Guess they changed how they do business.
    #68
  9. MIOB

    MIOB Long timer

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    Dime City also has them and tons of other cool stuff:

    http://www.dimecitycycles.com/
    #69
  10. bmwhacker

    bmwhacker Still on 3 wheels

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    I've been using the Acewell speedo now all summer and have been very happy with its' performance. Have ridden through some pouring rain and it is definately waterproof. I like the two resettable odometers. The "Mode" button is real easy to push with heavy gloves on too. My only complaint is that the green LED signal indicators are a little hard to see under direct sunlight. I originally used the "wrap" method for the tach pickup lead but finally wired directly to the coil. Much less "bouncing" of the bar graph now. I thought of purchasing another from Electrosports to have as a spare if I ever needed it but see that they say "product no longer available"....I wonder if they quit making them or if Electrosports just quit selling them?

    [​IMG]
    #70
  11. anonny

    anonny What could go wrong?

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    Mine crapped out after a few weeks, going to have to look into their warranty.
    #71
  12. bmwhacker

    bmwhacker Still on 3 wheels

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    Bummer! When I purchased mine this Spring it was only $120.00 or so. Reverting back to original BMW gauges isn't a very good option so I thought I might buy another one to rat-hole if ever needed.
    I'll have to read your thread to see what happened to yours'....
    Couldn't find any comments about the Acewell failure in your thread.( I was following your build a while back) ....What did it do? or not do?
    #72
  13. anonny

    anonny What could go wrong?

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    Some functions work when first energized, once the bike is started the display fades to nothing and data gets lost, clock resets back to 0. Turn off key and reboot and it goes through the same cycle.

    Bummer
    #73
  14. bmwhacker

    bmwhacker Still on 3 wheels

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    It must have a grudge against Kaws'....:lol3
    #74
  15. bpeckm

    bpeckm Grin!

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    Sounds like it is getting a jolt of juice, which is then shut off and so the display fades away. Intermittent contact? What did you wire the power source to?
    #75
  16. bmwhacker

    bmwhacker Still on 3 wheels

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    If I remember right I went to an unused "full time hot" spade fitting in the headlight board. I followed the diagram in this thread as a guide and then adjusted as needed to fit my 1974 harness. I had a junk BMW wire harness so any wire additions were done in proper color coding.
    I was in awe when I activated the bike electrical system and everything worked and nothing melted. :clapThe bike had sat dormant for 10 years or so. And then I transferred the harness to a different frame with a later model engine. Had to rewire the 1978 engine to match the 1974 electrical system. Talk about luck....2000 miles later all is well and the battery charges.

    When I disconnect the battery for whatever reason, the Acewell retains all the information and no re-setting is needed except for the clock if my memory is correct (which it often isn't).
    #76
  17. DimitriG

    DimitriG Adventurer

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    any anyone got the Koso units?

    ive already brought them and the generic instructions dont help much, got a speedo and seprate tach

    [​IMG]
    #77
  18. DimitriG

    DimitriG Adventurer

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    #78
  19. bpeckm

    bpeckm Grin!

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    What I really like about the wheel sensor is that it is dead accurate once it is calibrated... and I suppose this could be, as well, as long as the final drive ratio is not changed... hmm: interesting!

    Let us know if you find out that it works with the Acewell, though it would seem that any pulse generator could be calibrated, since the internal computer has an extremely wide range of inputs.


    :D
    #79
  20. MIOB

    MIOB Long timer

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    I adapted a Suzuki adapter to be like this BMW adapter (there wasn't a BMW adapter avaliable when I bought my Acewell).

    It takes a bit of calculating and the assumption that 1 rotation of the final drive means 1 rotation of the tacho drive and it's pretty accurate. Haven't tested it with a GPS yet, but the speed showing is exactly the same or just a little lower than the speed showing on the tacho of a cx500 when both bikes are running alongside each other.


    I think it looks way better (and it's certainly way easier) than a sensor in the fornt wheel.
    #80