Honda XLV750 into RS750 Flat Tracker build

Discussion in 'Some Assembly Required' started by ktmmitch, Feb 15, 2021.

  1. Scoozi

    Scoozi Long timer

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    This is a pretty awesome build, I'll be honest what I really want to know is how you're going to change the primary drive from gear to chain. I know a lot of early Honda four's used a Hy-Vo primary drive, is that what you had in mind?
    #21
  2. ktmmitch

    ktmmitch Long timer

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    I'm planning on machining a twin ring chain sprocket to replace the gear on the crankshaft, then remove the steel gear ring from the alloy clutch basket, machine a new twin ring sprocket and refit.
    IMG_3026.JPG
    #22
  3. ktmmitch

    ktmmitch Long timer

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    Co-Built Geoff is getting on really well with the frame build, just working from photos & blueprint, it's looking great !!! RS750.jpg
    #23
  4. ktmmitch

    ktmmitch Long timer

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    Latest update:
    Billet linkage all working nicely, just got the fibreglass replica RS750 seat panel and fork shrouds from USA, so now we can finish off the rear frame loop, then mount the steel tank, fabricate the headers and finish off the silencer mounts etc.
    Some great stuff going on at the Co-Built workshop, even someone wanting to fit a fearsome H2 Kawasaki 750 triple 2 stroke into a flat track frame !!!
    228159181_536666567783746_5424080998888756680_n.jpg 228833795_546383816543885_673515286721141490_n.jpg 228264221_285466806713599_5725208178119248754_n.jpg 228708357_561295255189104_3845648208194810068_n.jpg 228841233_942880396258659_170254417713004200_n.jpg 225835409_440308490311526_3071308955595407425_n.jpg
    #24
  5. pennswoodsed

    pennswoodsed lizards,bugs and me

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    Is the painted bike with flat slides a different bike ? or out of position and I lost track ? (More likely ) Very cool project BTW !
    #25
  6. ktmmitch

    ktmmitch Long timer

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    The painted red frame RS750 with flat slides is Matt McCrew's own bike in USA, he is helping me with details
    #26
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  7. Dino de Laurentiis

    Dino de Laurentiis Working on it

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    Awesome project! Like, old school v-twin, flat tracker style (i.e. bike reduced to the basic components) and lots of advanced fabrication, what’s not to like? Thanks for sharing mate
    #27
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  8. YamRZ350

    YamRZ350 Been here awhile

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    This is really wild. Nice work is an understatement. Thanks for letting us follow along.
    #28
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  9. bk brkr baker

    bk brkr baker Long timer Supporter

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    [​IMG]

    [​IMG]

    Mark McGrew's RS all decked out for Mark Marquez to do some demo laps at the Indy Mile in 2014. That didn't happen as Honda wasn't willing to let their Golden Boy risk injury before the next days Moto GP Race.
    #29
  10. Roadracer_Al

    Roadracer_Al louder, louder, louder!

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    In! This is my kind of crazy behavior.
    #30
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  11. Wildebeest90210

    Wildebeest90210 Long timer Supporter

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    Any progress at Co-Built?
    #31
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  12. ktmmitch

    ktmmitch Long timer

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    Our custom-built shock now fitted, linkage works great.
    Next is fuel tank, with cut-out for rear cylinder header pipe.

    239830243_4940882539259902_4943139781816801308_n.jpg 237164608_4940882559259900_3174434303647068200_n.jpg 236544540_4940882649259891_8814557172726762309_n.jpg
    #32
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  13. dakka

    dakka n00b

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    Great project. Following with interest. What is your plan for the cylinder heads?
    #33
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  14. villageidiot

    villageidiot Long timer Supporter

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    not sure if you saw it but theres a pretty nice set of RS750 glass on VFT.org

    about 5hrs north of me, but could be shipped to me and then relayed across the pond.

    or if you need anything at "airtech streamlining" i can facilitate that as well.
    #34
  15. ktmmitch

    ktmmitch Long timer

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    Hi, thanks but have already bought glass from Airtech recently
    #35
  16. bikefreak69

    bikefreak69 Adventurer

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    Pretty cool build up!
    #36
  17. ktmmitch

    ktmmitch Long timer

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    Geoff, master fabricator at Co-Built, has been trying to get both header pipes the same length, for optimum power, compared to the std RS750 factory pipes, and came up with this great solution, not sure which I prefer best.... 242552372_10160126843204575_6254508835480699669_n.jpg 242714277_10160126843194575_8252548312713063366_n.jpg
    #37
  18. CaptainUnsociable

    CaptainUnsociable Adventurer

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    Have him do you both!

    I personally think it looks daft the equal length way... the way it juts out the front of the frame the way it does, but I get the reasons for equal length...
    #38
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  19. Tanshanomi

    Tanshanomi Your Favorite Uncle Supporter

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    Gotta say, not a fan of the curly-q pipes. Turns it from a serious race replica into a cartoonish custom.
    #39
  20. r60man

    r60man Long timer

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    The curled version for the front cylinder seems like to would cause more harm than good. That amount of heat right there at the plug, frying the resistor cap and wires. I really like the race set up better.
    #40
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