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Thread: DT400 Dirt Tracker

  1. #1
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    DT400 Dirt Tracker. Wanting to put on Methanol

    Hi all, I came across this forum whilst looking around for info on DT400 builds. I had a good read through ls40x's thread, lots of good stuff there.

    I've spent the last year turning this crusty farm fresh DT:


    into this:




    It still has the original 40 year old motor in it. By playing around with the pipe I made for it, jetting etc. It is running ok now, but no where near fast enough for dirt track.

    I have been collecting DT parts for the last year and have a spare motor that I plan to have rebuilt on methanol for next years season. Has anyone built one of these on methanol and have any advice? I like to have as much info to hand as I can.

    A bit of video of it running



    I have an oversized cylinder and piston sitting here that I might throw on it over my Christmas break, just for shits and giggles.

    Thanks

    Rod
    Last edited by motoSycho; 20-12-17 at 02:57 PM.

  2. #2
    Registered User Mini_Me's Avatar
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    Oh man that’s cool!


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  3. #3
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    Cool bike. Cool video.

  4. #4
    Registered User ls400x's Avatar
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    Many awesome!

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  7. #7
    Registered User schnitzelburger's Avatar
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    this is tits and old mate at my work who has done up a bunch of old yammi dirt bikes agrees.
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  8. #8
    Registered User ajs991's Avatar
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    That is awesome.

  9. #9
    Owns a bucket no13b_Coupe's Avatar
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    Fuck yeah!!!
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  10. #10
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    This is awesome, looking forward to the methanol update

    The only thing that would make it more awesome is if it was registered
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  11. #11
    Non Compos Mentos Gammaboy's Avatar
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    If the pipe works on petrol, the spec isn't going to be anywhere near right when it's on meth. Incidentally, pipe looks way too short - how did you come up with the specs?
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  12. #12
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    Hi Gamma, because this motor is still bog stock I extrapolated from the original pipe and spoke to some guys that know more than me.

    I now have a couple of pipe programs and this pipe is pretty close based on the specs I put in.

    I'm having the methanol motor built by some pros, so I'll get them to work out the new pipe specs and I'll make it.

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