R90/6 Texas Dirtbike rebuild

Discussion in 'Airheads' started by DiabloADV, May 9, 2012.

  1. DiabloADV

    DiabloADV Semi-Occasional

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    I decided to save a little time (and gain some quality) so I bought these from BR Moto, who makes them for Wolfman. I have the Wolfman bags already.
    Ready to weld!
    [​IMG]
    #81
  2. Lornce

    Lornce Lost In Place

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    Dude, that's a neat bike. :thumb

    Have you tossed your "calipers" yet. "+\- 0.1mm accuracy" (sic) is 8-thousanths of an inch. That's a mile. They're no good for measuring much of anything.

    Recently bought a digital vernier for knocking around the garage (ie: I'd never take it to work) and it's accurate to within 0.0005" (1\2 a thou). I paid $15 for it. No kidding.

    Keep posting pictures. You've got a really neat bike there.

    :thumb :thumb
    #82
  3. DiabloADV

    DiabloADV Semi-Occasional

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    I'm out of the business of making tiny accurate measurements! There are machine shops for that... :1drink

    I've got the subframe almost finished. 90% of the time spent on this project so far has been staring at it and sipping Jack on the rocks. Pics coming...
    #83
  4. DiabloADV

    DiabloADV Semi-Occasional

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    Main subframe done. Took me a while to figure out a way to mount (1) muffler hanger; (2) side racks; (3) fender hanger; and (4) top rack to the subframe, and add a little extra support to the flat rear part. Solution is those side plates. Those are 1/8 plate welded to the 12 gauge tubing. The plates will be finished with holes drilled for mounting the other parts.

    [​IMG]

    I got a lic plate/tail light bracket from chris at boxermetal that works perfectly.
    #84
  5. hardwaregrrl

    hardwaregrrl ignore list

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    Uhmmm....Hello?!!! :lurk
    #85
  6. DiabloADV

    DiabloADV Semi-Occasional

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    The holidays got me off track! Actually -- I spent a lot of time fiddling with various ways to set up the exhaust. Current header sidepipes block the use of a centerstand. I'd need to weld longer centerstand mounts, ala the later bikes. But, since I want to do a crossover and have a single exhaust, I'd need to do that anyway...

    So, I'm next going to make the exhaust merge/crossover and get my muffler can mounted. Then fab and weld new centerstand mounts.

    Wheels hubs are being sent back to me from the vaporblast guy, then off to get built into wheels. If I like how the vaporblasting turned out, I'll send up the gearbox and motor cases.
    #86
  7. DiabloADV

    DiabloADV Semi-Occasional

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    Got hubs back from vapor blasting. I decided to have the R90 hub converted to standard sealed bearings by Woody's. No more fiddling with spacers and wedding rings and torque wrenches.

    These get mailed out to Woody tomorrow, for mounting as 17x2.5 rear and 19x2.5 front, sealed for tubeless.

    Also made a decision to make an under-frame crossover pre-muffler, to then allow for a minimalist single can on the left side. The mandrel-bent tube I need to do that should be here this week and I can commence that experiment.

    [​IMG]

    [​IMG]
    #87
  8. DiabloADV

    DiabloADV Semi-Occasional

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    Remember when you were a kid and it was easier to work on your bike if you turned it over?

    Ready to start the exhaust mods and make new center stand mounts.
    [​IMG]
    #88
  9. Beater

    Beater The Bavarian Butcher

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    Yes ... and I must admit, this has NEVER occured to me. :lol3
    #89
  10. Stagehand

    Stagehand Imperfectionist

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    It occured to me once, when i broke the shift pawl spring, and I thought "well, I can think of ONE way to shift gears" :D that was it, though.
    #90
  11. hardwaregrrl

    hardwaregrrl ignore list

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    I often lay mine down on the jug to install the skid plate or torque the oil pan bolts.....I know someone else who's flipped it on it's top. Glad you're still keeping us in the loop.:1drink


    <a href="http://www.flickr.com/photos/22817219@N04/5094552684/" title="P1030990 by hardwaregrrl, on Flickr"><img src="http://farm5.staticflickr.com/4089/5094552684_5bcdeb64f6_b.jpg" width="576" height="1024" alt="P1030990"></a>
    #91
  12. Airhead Wrangler

    Airhead Wrangler Long timer

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    Back in Seattle, FINALLY
    #92
  13. Beater

    Beater The Bavarian Butcher

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    #93
  14. Stagehand

    Stagehand Imperfectionist

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    Should be able to bend one of those out of some suitable fence wire found lying about almost anywhere
    #94
  15. DiabloADV

    DiabloADV Semi-Occasional

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    Can't. It's "patented"
    #95
  16. bmwblake

    bmwblake upside down parker

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    you really know how to make a guy feel loved. :D


    #96
  17. Dmaster

    Dmaster Been here awhile

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    You only find that stuff in your wheels when you DON'T need it :evil
    #97
  18. Stagehand

    Stagehand Imperfectionist

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    Only if I try to sell it :D You dont want to buy one I made, do you? :lol3
    #98
  19. DiabloADV

    DiabloADV Semi-Occasional

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    Wheels back from Woody. R90 rear hub converted to sealed bearings. 17 rear; 19 front. Sealed for tubeless.

    Anakee 2 tires. 120 in back.
    [​IMG]
    [​IMG]
    #99
  20. Houseoffubar

    Houseoffubar HoFmetalworks.com

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    Well, aren't you a fancy fella! :lol3

    Very, very nice! :clap