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Thread: Still in the shed

  1. #1
    Join Date
    Jun 2007
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    Bris Vegas
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    3,371

    Default Still in the shed

    For those that are interested in shear lunacy, read on.
    The 1962 race bike is still progressing. A very Zen thing. Iíve cut down the vibration by putting angular contact bearings on the crank and cam shaft and the foot peg is no longer 4Ē wide at max rpm. Which at 13800 was uncomfortable to say the least. Now itís only 2Ē wide. I did adjust the intake port glued area to knock off some rpm for now. Need to trade off some power for engine life.
    The new issue is fuel. Just to make things interesting itís rich below 8k and lean above that. With a window of about 1000 rpm around 13:1 air fuel. Iíve had to go old school and build a new slide, and there is only one needle available these day for the SS1 35. So itís stick it in the drill and emery cloth time. The slide gets a file job on the cut away. The ultimate in analog mapping. Itís the same stuff, just replacing a key board and screen with a file and emery cloth. The down side is you can only tune in one direction, muff it and the slide and needle are bin material. I have a new appreciation for the old racers and tuners now.
    Griff
    To infinity and.......

  2. #2
    Join Date
    Feb 2015
    Location
    Midwest
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    48

    Default

    Come on Griff, no pics? Some of us has cabin fever.

    Robert

  3. #3
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    Jun 2007
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    Default

    Ok, anolog mapping. The idea is to get a reference. The fat needle is running at 18-20:1 air fuel. Target is 12-13:1. The thin needle with luck will be way rich. Stick on dyno, get reading. And turn fat needle into correct taper. Only one size needle available so I donít have much choice.
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    Griff
    To infinity and.......

  4. #4
    Join Date
    Jun 2007
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    Default Shed porn for Robert

    Help on the cold long nights.
    The single race head. That there be Ti valve, modestar 90 guides and seats and MBP collets that go up and down near 7000 times a minute. My new way of checking shim clearance is to look down the port with valve closed, but my finger on the top rocker. You see a little ring of light. Let finger go, it go dark. No springs.
    Perfecto.
    Whalah. One finished sport engine
    New hand hewn cable adjuster screw
    The sports front no gasket squish.
    Last edited by griff851; 01-31-2018 at 05:11 AM.
    Griff
    To infinity and.......

  5. #5
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    Jun 2007
    Location
    Bris Vegas
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    Default

    Turn T15 530 into T15 520. I highly recommend doing this for fun factor. You cut with a ceramic tip hot. Lots of thin streams of flaming swarf zinging around. Cuts like a hot knife through butter.
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    Last edited by griff851; 01-31-2018 at 05:26 AM.
    Griff
    To infinity and.......

  6. #6
    Join Date
    Jun 2007
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    Bris Vegas
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    Default

    A muffin my wife made that tried to attack us!
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    Griff
    To infinity and.......

  7. #7
    Join Date
    Feb 2015
    Location
    Midwest
    Posts
    48

    Default

    You had me until the Muffin Monster.... maybe spending a bit too much time in the shed there Jason. Jason? Jason? Hey that just reminded me of an awesome flick called Final Approach (1991).

    Robert
    ďThese damn birds are made out of plastic!Ē
    Last edited by got2Lev8; 02-01-2018 at 07:30 AM.

  8. #8
    Join Date
    Aug 2007
    Location
    Brisbane,Australia
    Posts
    286

    Default

    Looks a bit like Shaun the sheep

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