Harrys R S/2 Conversion Build

Discussion in 'Airheads' started by black knight, Nov 1, 2020.

  1. black knight

    black knight Long timer Supporter

    Joined:
    Dec 2, 2009
    Oddometer:
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    Now Plan C:

    a ' KISS ' approach. . . . . . it's so very simple and provided all the extra room any owner would want when doing maintenance work, tranny removal ... etc
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    Solo Lobo and Jim K in PA like this.
  2. black knight

    black knight Long timer Supporter

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  3. black knight

    black knight Long timer Supporter

    Joined:
    Dec 2, 2009
    Oddometer:
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    my new [made in ] sept 1977 R80/7 Motor and 1977 Transmission 5 speed. history & mileage unknown. points motor. a Very gO:feelgoodOd starter for a /2 conversion.

    was bought thursday and dropped off at the german engine rebuilder's shop, sat late. Everything will get a GooD once over.

    bead blasted cases,
    [ stop ! ! ! - I don't need to head the BS - - - it gets totally sealed b4 that happens.

    new:
    bearings, internals and lord knows what else because we don't know just yet what's measured, internals, condition, etc ... ... ...

    am investigating 860cc pistons.


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    yes I know it sports an R75/5 cover . . . . ..

    $600.oo


    .
    .
    Solo Lobo likes this.
  4. black knight

    black knight Long timer Supporter

    Joined:
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    Oddometer:
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    Now to finish ups w/ the battery box set-up, installation of, securing of . . . . . .

    I came up with a simple solution, adding 2 pins and locating holes that 'hold fast' the bottom from movement. This 'KISS' idea now allows a Complete Removal of the Entire Battery Box so I have ALL the room I could want for Maintenance Work, Removal of, Cleaning and Servicing Components.

    & Yes they are 2 nails, cut about 1/2" long. Brazed in situ :rogue :rayof:happay:lurk



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  5. Pokie

    Pokie Just plain Pokie.

    Joined:
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    8,338
    Location:
    Fort Collins, CO
    Wow, a drill bit that can drill around a corner!
    Wayne J in MA likes this.
  6. black knight

    black knight Long timer Supporter

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    Dec 2, 2009
    Oddometer:
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    It's taken about a year to get this set of Earles to this point. still in mock~up .


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  7. black knight

    black knight Long timer Supporter

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    Get a coffee or a drink have a seat and have a look and a walk through what we believe is the best upgrade ignition system you can buy for your Airhead BMW motorcycle.

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    Revolutionary ignition management, premium electronics, custom written programing driven by experienced Airhead technicians, race engine builders, electrical engineers, IT specialists and time. Reliable, INNOVATIVE, advanced in its function like no other. Designed, developed and made in Australia for the whole world.

    https://www.facebook.com/wedgetailaustralia/


    Wedgetail  logo  .jpeg Wedgetail     18_n.png.jpg 225769196_528085411798912_7559860437335115825_n.jpg Wedgetail ignition   logo  a   .png wedgetail_photo_1.png
  8. black knight

    black knight Long timer Supporter

    Joined:
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    - - - - - - >>>> Revolutionary ignition management, premium electronics, custom written programing driven by experienced Airhead technicians, race engine builders, electrical engineers, IT specialists and time. Reliable, INNOVATIVE, advanced in its function like no other. Designed, developed and made in Australia for the whole world.


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    Any coil between 0.7 Ohm and 3.0 Ohms is fine. Two 3.0 Ohm coils in series is still almost 3.0 Ohms.

    (OK, it is actually I=V(1/R1+R2 )

    but close enough for our purposes here.

    The ICU has a built-in reverse spike suppression, so that it will never be damaged by the issues that caused so many HESs on the OEM ICU Beancan and many aftermarket ones to fail. Thus, they are not at all susceptible or sensitive to plug cap resistance. I like to have some plug cap resistance because the spark rise curve looks more consistent on the scope, regardless what ignition is used. The Wedgetail is fine with 1K Ohm, 5K Ohm or even 0 K Ohms, but I'd want to have some suppression for RFI issues in case you use a phone for navigation or tunes. You're not going to need to add air flow to the module, it is designed and constructed to withstand the Australian Outback and Brooklyn, NY heat soak. The module grounds through the system ground, and is mounted to a solid frame ground as well, which you would have on your custom build.
  9. black knight

    black knight Long timer Supporter

    Joined:
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    Australian manufacturer of electronic ignition systems and associated hardware, electronics etc., Designed and built in Australia for the rest of the world

    the best upgrade ignition system you can buy for your Airhead BMW motorcycle. Revolutionary ignition management, premium electronics, custom written programing driven by experienced Airhead technicians, race engine builders, electrical engineers, IT specialists and time. Reliable, INNOVATIVE, advanced in its function like no other.



    3" Long x 2 5/8" wide x 1 1/2" thick

    wedgetail       08.JPG wedgetail       09.JPG wedgetail       040.JPG wedgetail       041.JPG wedgetail       042.JPG wedgetail       043.JPG wedgetail       045.JPG wedgetail       046.JPG wedgetail       047.JPG wedgetail       048.JPG wedgetail       049.JPG wedgetail       050.JPG
  10. black knight

    black knight Long timer Supporter

    Joined:
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    Oddometer:
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    work is slow @ my end on this project. I managed to find an R80/7 [ 1977= motor and a 77 5 speed transmission for $600.oo.
    unknown history.
    it turns out the tranny is OK.
    that 80 block is
    SHOT ! ! ! ! ! :flush :hair :baldy :muutt :puke2 :2cry

    so within 2-3 hours we were lucky to find a R100/7 GOOD block for $350.oo :p3rry

    the R80 seller gave me back $300.oo and we're off and running again. I found & bought a NOS , R800cc mikail Cylinders, Pistons and rings from Kolbenschmidt. :happay :rayof :wings :super :dutch

    and yesterday a set of completely rebuilt by
    Randy Long [ PA ]
    a pair of R100/7 heads. ALL COMPLETELY NEW BITS & REBUILT .

    The Clutch went off today to Southland clutch in lower san deco, calif to get a complete new rebuild.


    I am one very happy camper :nomystery :viking 2B540D9A-6537-4CAE-B751-29F8F37FF4E3.jpeg 0D08CD95-6B88-48C1-A863-B3D8C34723F9.jpeg 5A4C2719-C218-43F1-9503-12B24E0875C6.jpeg 09B37174-C1FD-4E47-AA83-32F76DD05742.jpeg 17F2BDE7-5D0C-43D9-831C-AC967C88D406.jpeg 25F704B8-9A2F-4AAC-A9D5-6C02281A16F4.jpeg 41C93E58-54B6-4650-85BB-B1593BC639C6.jpeg 39313895-875A-4A40-9621-C807C6B8D632.jpeg CAB684E2-0699-483E-A562-A8BAF4EBC2D7.jpeg DD037CFD-B890-44D7-9385-9B6253525528.jpeg DF0C83AF-2C98-4CEA-978C-DC1DA6A4B9EB.jpeg FA536829-4E95-4D62-A948-4B549AC5982D.jpeg 09B37174-C1FD-4E47-AA83-32F76DD05742.jpeg
    Jim K in PA likes this.
  11. black knight

    black knight Long timer Supporter

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  12. katit

    katit Been here awhile

    Joined:
    Aug 26, 2020
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    Saint Louis, Missouri
    Is front tire on wrong way?
  13. black knight

    black knight Long timer Supporter

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    Dec 2, 2009
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    R100 block, R800 Nikacil Barrels , Randy Long heads.

    ALL Hot Tanked
    Sealed engine
    bead blasted

    same w/ transmission

    step 1 almost done


    R80-2  Rebuild   1     .jpeg R80-2  Rebuild   2  .jpeg R80-2  Rebuild   3  .jpeg R80-2  Rebuild   4  .jpeg R80-2  Rebuild   5  .jpeg