DisTech's DR790 build

Discussion in 'Thumpers' started by DisTech, Mar 16, 2013.

  1. DisTech

    DisTech Been here awhile

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    Well aright then! Thanks for the encouragement. And now more nav tower!

    Gardgets attached!
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    Naked cockpit (that sounds so dirty)!
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    #81
  2. DisTech

    DisTech Been here awhile

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    No going back.
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    Hrrmm...
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    More vertical?
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    This view I like. And clearances work too.
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    #82
  3. AustinJake

    AustinJake DR650 - Versys

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    Looks great to me, on my Lynx fairing, I used some rubber channel to trim parts, like you could use some to close up the gap between the headlight ring and the windscreen.

    [​IMG]
    #83
  4. DisTech

    DisTech Been here awhile

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    Thanks and thanks for the idea. You'll see in a moment why the seals probably won't work on this project.
    #84
  5. DisTech

    DisTech Been here awhile

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    The screen is set more vertical and I like it better.
    [​IMG]

    Nav tower series is about done. Just have to figure wire/cable routing and then it's 790 break in!
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    #85
  6. The Breeze

    The Breeze Been here awhile

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    That is one F'ing sweet DR!!!!:clap:clap:clap:clap:clap
    #86
  7. DisTech

    DisTech Been here awhile

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    Just got back from the beginning of a Motoman break in! Braaww, braaww, braawww! Then it started raining and rush hour traffic was sucking. Needless to say I am cold, wet and happy! :D The new front end is sooo much nicer, forks are firmer, bars are taller. Can't wait to see how it handles offroad. Did I mention it is taller? I can finally stand up comfortably, the BRP/Scotts submount with Pastrana FMX bars works for me!
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    I've got my Innovate wideband air/fuel gauge mounted temporary. Pretty interesting to watch while riding around. Expected it to show I was running much richer than it does. Says around 11 while running, 16.8 is just after it was shut off.
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    The 790 definitely has more torque all over, may have clutch slipping problem now.
    #87
  8. bkoz

    bkoz Been here awhile

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    Very, very cool, great build thread.

    How tall are you? RMZ front end + BRP mounts + Pastrana FMX bars equals one big DR.
    #88
  9. a1fa

    a1fa Throttle Jockey™

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    DisTech, did you calibrate the LC-1? It needs to be calibrated, otherwise it will show random things. Also, if you connect to it using your laptop, you can adjust the range it reports on.
    #89
  10. DisTech

    DisTech Been here awhile

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    I'm 6'-5", so yea it's pretty tall now.

    Yes, calibrated in free air it read 22.4 like it should. 16.8 was just odd because I had just turned the bike off and wheeled in inside. Gonna ride with it for a while, still think it's jetted to rich.
    #90
  11. DisTech

    DisTech Been here awhile

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    With the 14 tooth cs, 70mph used to be a bit buzzy. No longer! The 790 really changes how smooth and powerful the DR feels on the freeway. I love it. :norton

    My clutch, however does not love it! Couple times accelerating with the clutch fully engaged, the rpms suddenly wound up as the clutch just slipped. That just won't do, ordered a Barnett Clutch Kit from ProCycle.
    #91
  12. Rhyno

    Rhyno PrsnalityAccentuator

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    How is that front air dam/wind screen working out?

    I am curious as to its efficiency versus your body size and riding style.

    If you have time, can you elaborate?
    #92
  13. Rhyno

    Rhyno PrsnalityAccentuator

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    One more thing..

    Maybe you can find heavier springs PRIOR to spending big $ for a "High Performance" kit.

    An increase in "clamping force" might solve your clutch issues. Another definite resolve is to increase the "friction area." This has been done (in other applications) by machining your basket to allow the addition of another friction and/or steel. I don't know about the DR basket potential, though.

    Springs can be measured and compared.

    (I.E. Diameter, gauge, resting length, pounds for a measured compression length, etc.)

    Transmission repair shops have employees with BOXES of extra springs. Maybe an industrial equipment repair house, hydraulic repair shop, etc.

    Good luck on your "quest."
    #93
  14. DisTech

    DisTech Been here awhile

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    Had the F650 windscreen/Buel dual headlights/Sleestak mounted to the triples from my DR650 build thread. Pro; wind protection on the freeway, the cockpit you get for your instrumentation. Con; too much weight on the steering, Buel headlights are weak.

    Next setup was an 8" HID race light from TrailTech and no windscreen. Pro; light weight steering, big dirtbike feel, unobstructed visibility, shockingly bight light (and only 35watts). Con; wind on the freeway.

    No windscreen was really fun, but it's about an hour ride from home to anything unpaved and the wind on the freeway wore me out before and after riding around in the hills.

    Finally decided to build a frame mounted nav tower an keep the 8" HID. Didn't know what I was going to do for a windscreen but I had the F650 one and tried it. It works very well, provides a nice bubble at 70mph. I have an AFX dual sport helmet and with no windscreen the helmet visor on the freeway was pretty annoying, catching wind and jerking your head around. With the F650 Dakar windscreen mounted as it is (and Sleestak) I don't have a problem with the dual sport visor. The wind protection and smoother running at 70mpg from the 790 looks promising.

    Only done break in rides on road so far. Still have to see how the nav tower, etc holds up off rood.
    I could have ordered just the Barnett heavy duty clutch springs for $19, but I had an incident with my clutch and suspect the need to replace the plates anyway. So taking care of both problems at once.
    #94
  15. DisTech

    DisTech Been here awhile

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    Thought I'd try the bedliner trick on the skid plate to see if it actually reduces the engine noise magaphone effect.
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    Tape to protect my beautiful pristine skid plate!
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    First two coats.
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    Five coats dry and ready to install.
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    Probably order a Pat Walsh skid plate at some point, but if the bedliner makes any difference it will get the treatment as well.
    #95
  16. regg

    regg Been here awhile

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    I had great success with dynamat.
    #96
  17. DisTech

    DisTech Been here awhile

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    Thanks for the ideas guys.

    regg, I read in your Anyone had any luck LineXing a skid plate? thread that you used Dynamat Xtreme. So does that have a foil side that is exposed? And does Dynamat Xtreme use a closed cell foam? I found references that Dynaliner is closed cell and therefore ok to use with water and oil, but didn't find any info about open or closed cell foam for Dynamat Xtreme.
    #97
  18. Solo Lobo

    Solo Lobo airhead or nothing

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    I used one of Dynamat's products on my skid plate, the foil side is up and under that is a thick layer of black sticky tar-like stuff... worked great and significanly cut down the noise from my engine.
    #98
  19. DisTech

    DisTech Been here awhile

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    So Dynamat is not a foam at all? Makes sense why I couldn't find info on open or closed cell then. It looks easier and I bet works better than the bedliner stuff. Thanks, I'll try it on the next one.
    #99
  20. regg

    regg Been here awhile

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    The Dynamat that I used had a foil side and a sticky side. The fol is pretty thick and will slice your finger pretty easily. The sticky side is almost a tar type consistency. I wouldn't really call it a closed cell foam. It's been on there for a few thousand miles and so far so good.