DT/MX400 street tracker build

Discussion in '2 smokers' started by moto-scoot bill, Jul 18, 2013.

  1. moto-scoot bill

    moto-scoot bill Been here awhile

    Joined:
    Feb 17, 2008
    Oddometer:
    241
    Location:
    milwaukee---you know---H.D. country
    the big bore DT/MX400 street tracker is getting close to completion, and details will follow when the bike gets buttoned up, but here is a start, and a brief look into this build.
    we started with a 1975 DT400 and with our background on working with these old 2-strokes, we knew they were de-tuned out of the box. the beauty of the DT400 is that it shares the same bottom end as the Yamaha MX400.
    OK, let's throw a 38 mikuni, a HOT power dynamo ignition with very light fly wheel, MX 400 top end, refurbished crank from Mr. Crankshaft, genuine Yamaha PISTON overbored, sweet pipe from Circle F, all new everything else inside and out....clutch, seals, bearings, wiring, you name it, and it was replaced with nos parts.
    also added was a couple of inches to the swing arm by Frame Crafters with some cool adjustable mounts. YSS is the rear shocks of choice, along with special made alloy wheels with Buchanon laced stainless spokes polished like the rims.
    the original gas tank is going back on, and the Hot Wings seat is getting painted to match. the seat will hide the light weight plastic Tomos moped oil reservoir with oil indicator sending unit, so we will know by a blinking light on the controls when the oil is getting low.
    the Power Dynamo ignition is run without a battery, so the whole underside of the seat pan will remain clean and you will get to see the big K&N filter.
    tires of choice are vintage pattern from Hiedenhau.....the rest will follow when we get closer to firing her up for the first time. until then...CHEERZ![​IMG] [​IMG][​IMG] [​IMG]
    #1
  2. moto-scoot bill

    moto-scoot bill Been here awhile

    Joined:
    Feb 17, 2008
    Oddometer:
    241
    Location:
    milwaukee---you know---H.D. country
    THE PIPE IS FROM CIRCLE F....THE GUY WORKED AT JEMCO FOR YEARS....BEAUTIFUL.
    [​IMG]
    #2
  3. moto-scoot bill

    moto-scoot bill Been here awhile

    Joined:
    Feb 17, 2008
    Oddometer:
    241
    Location:
    milwaukee---you know---H.D. country
    [​IMG]
    #3
  4. moto-scoot bill

    moto-scoot bill Been here awhile

    Joined:
    Feb 17, 2008
    Oddometer:
    241
    Location:
    milwaukee---you know---H.D. country
    [​IMG]
    #4
  5. moto-scoot bill

    moto-scoot bill Been here awhile

    Joined:
    Feb 17, 2008
    Oddometer:
    241
    Location:
    milwaukee---you know---H.D. country
    [​IMG]
    #5
  6. moto-scoot bill

    moto-scoot bill Been here awhile

    Joined:
    Feb 17, 2008
    Oddometer:
    241
    Location:
    milwaukee---you know---H.D. country
    [​IMG]
    #6
  7. moto-scoot bill

    moto-scoot bill Been here awhile

    Joined:
    Feb 17, 2008
    Oddometer:
    241
    Location:
    milwaukee---you know---H.D. country
    [​IMG]
    #7
  8. PistonPants

    PistonPants Crankcase Scavenger

    Joined:
    Jun 11, 2008
    Oddometer:
    531
    Location:
    Cantwell, AK
    Quality stuff Bill!:clap That is going to be thoroughly fun and anti-social to ride. Looking forward to see it develop.

    Piston
    #8
  9. moto-scoot bill

    moto-scoot bill Been here awhile

    Joined:
    Feb 17, 2008
    Oddometer:
    241
    Location:
    milwaukee---you know---H.D. country
    we used the Flanders handlebars and a sweet all in one dirt bike switch, and Magura levers and Renthal grips
    [​IMG]
    #9
  10. moto-scoot bill

    moto-scoot bill Been here awhile

    Joined:
    Feb 17, 2008
    Oddometer:
    241
    Location:
    milwaukee---you know---H.D. country
    [​IMG]
    #10
  11. moto-scoot bill

    moto-scoot bill Been here awhile

    Joined:
    Feb 17, 2008
    Oddometer:
    241
    Location:
    milwaukee---you know---H.D. country
    this bike shed allot of weight and one of the big gains was this pipe. along with the switch to alloy wheels, alloy rear sprocket from Sprocket Specialist, the plastic oil reservoir, loose the fenders, tiny tail light and alloy turn signals, fiberglass seat pan, on top of the magnesium engine and hubs......I will weigh it when it is finished, but it rolls easy.
    [​IMG]
    #11
  12. moto-scoot bill

    moto-scoot bill Been here awhile

    Joined:
    Feb 17, 2008
    Oddometer:
    241
    Location:
    milwaukee---you know---H.D. country
    every seal, bearing whatever would come apart was replaced. all wiring will be new custom built. even key ignition is NOS......Yamaha fork brace going on next:clap
    [​IMG]
    #12
  13. bobfab

    bobfab Long timer

    Joined:
    May 11, 2009
    Oddometer:
    1,736
    Location:
    Westminster CO
    wow! Looks great already! :clap
    #13
  14. moto-scoot bill

    moto-scoot bill Been here awhile

    Joined:
    Feb 17, 2008
    Oddometer:
    241
    Location:
    milwaukee---you know---H.D. country
    getting closer to completion, with body work just back from decal shop. but for now it is happy kicking back with a few 2-stroke brothers from the 70s.
    [​IMG]
    #14
  15. Gham

    Gham Long timer

    Joined:
    Mar 1, 2005
    Oddometer:
    1,748
    Location:
    Auburn Hills,MI.
    very nice work:clap Is that Suzuki a 550? I can't tell
    #15
  16. joexr

    joexr Banned

    Joined:
    Jan 4, 2011
    Oddometer:
    5,022
    GT550 or GT380.
    #16
  17. Gham

    Gham Long timer

    Joined:
    Mar 1, 2005
    Oddometer:
    1,748
    Location:
    Auburn Hills,MI.
    yeah,I just can't tell which.The color leads me to believe it's a 550.

    When they first came out I used to see the GT380's fairly often.The 550 was rare as hell though.(at least in my area)
    #17
  18. joexr

    joexr Banned

    Joined:
    Jan 4, 2011
    Oddometer:
    5,022
    I had a 380 , but always saw more 550's. I had a GT500 twin too.
    #18
  19. Valleyrider

    Valleyrider I Survived The '60s

    Joined:
    Apr 12, 2007
    Oddometer:
    1,896
    Location:
    Idaho Panhandler
    I'm IN for this one!!!:lurk
    #19
  20. boomshakalaka

    boomshakalaka Been here awhile

    Joined:
    Jun 23, 2010
    Oddometer:
    143
    I had a DT400. I wanted to do something like this.. kind of a retro supermoto. Got a good price for it though. Can't wait to see how this comes together.
    #20