TY250 project

Discussion in 'Trials' started by Junglejeff1, Nov 1, 2018.

  1. Junglejeff1

    Junglejeff1 Long timer

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    I found out the brake swap is to the yz twin leading brake they used on the open class bikes.So far very pricy part to buy on ebay.Don't have to have them but am keeping a eye out.
    #61
  2. Junglejeff1

    Junglejeff1 Long timer

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    Santa fed ex visited this week. 20181225_123209.jpg 20181225_123150.jpg
    #62
  3. PeterW

    PeterW Long timer

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    FWIW, that rubber exhaust mount is easy. You can just buy sheet rubber or better conveyer belting and cut it with a hobby knife then use a wad punch to make the center hole. Metal washer/rubber washers under the bolt head and nut also help a lot with durability. It's not just vibration, when you drop it on that side that's where all the stress goes so more flex helps a lot there as well.
    #63
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  4. Junglejeff1

    Junglejeff1 Long timer

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    20181226_150031.jpg 20181226_143138.jpg 20181226_155113.jpg got some stuff done today.Ground out the lick and stick weld on muffler mount. Burned in some new beefy welds on both sides.Cut foot peg mounts off and pulled lower frame plugs out.Will make deeper plugs that are tapped for 8mm bolts to mount new drop/setback mounts.Cut old auto chain oiler pieces off swingarm and filled holes.Have to set up a new kickstand set up on swingarm because had to remove frame mount as it was in the way for my pegs.
    #64
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  5. Junglejeff1

    Junglejeff1 Long timer

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    20181228_203531.jpg messed around with it tonight getting some stuff figured out for fabrication.Bike is going to have about 13" of clearance when I am done so should not have much problem casing out.Ordered a oko flat side carb with polished ventura for it also.Have 13.4" falcon shocks also coming from EU for it.Shocks are just a hair over 200 shipped which is cool.Getting a sprocket and chain kit for it from OZ for about 100 shipped.Love this world economy stuff.
    #65
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  6. villageidiot

    villageidiot Long timer Supporter

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    Oko carbs “new yuppy fashion trend”

    Ten years ago that’s what it said on the boxes.
    #66
  7. Junglejeff1

    Junglejeff1 Long timer

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    Lol,don't know anything about that.I use them because they are cheap and they work well.Nothing but a Taiwan copy of a kiehin but at least it is a good copy.There are Chinese oko copies that are just pure junk.Found that one out with one I picked up on ebay for a yamaha 1972 gt80 rebuild.
    #67
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  8. villageidiot

    villageidiot Long timer Supporter

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    Oko makes a great carb. I just always laughed when I got the packaging.
    #68
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  9. Junglejeff1

    Junglejeff1 Long timer

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    I looked all over that box and found it in small print on the bottom. I never would have seen it if you didn't tell me,Funny stuff.
    #69
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  10. Junglejeff1

    Junglejeff1 Long timer

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    I talked to the performance shop today and he has my crank and jug done.I have a crazy next 7 days coming up so will pick my stuff up later next week.I turned 56 years old today and figured life would slow down some but the speed still seems to be going up.Better to burn out than fade away lol.
    #70
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  11. Amphib

    Amphib A mind is like a parachute....

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    Happy birthday Jeff, I'm enjoying the thread.
    #71
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  12. Junglejeff1

    Junglejeff1 Long timer

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    Picked up my crank and jug.Shop did some real nice work.Got out to garage today and started some fab work.Will get it fit up then take the TIG to it.

    Attached Files:

    #72
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  13. Junglejeff1

    Junglejeff1 Long timer

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    20190124_162739.jpg received my shocks today.Nice quality build on them.Falcon fitted them with 70 lb springs because of my weight and also because I laid them down some. Going to have to get springs for front but not sure what what weight to get made up.Mikes xs has cartridge emulatorsfor 55 bucks that will fit in ty forks.Most likly will mod the front dampers with those installed.
    #73
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  14. Junglejeff1

    Junglejeff1 Long timer

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    20190203_213159.jpg spent some time in garage today as it got up to 40 degrees. Have to love those 70 degree temp changes in 2 days.finished a lighter redesign for the relocation of the foot pegs.Did it more like the majesty ty,s had it instead of bolt on adapter plate.Will use the treaded holes I put in for some neat aluminium frame gaurds. I fabled up a new engine mount but found I made the ear out of a thinner steal than other side.It matches the stock right side one but not as thick as the left.Maby that is the reason they are known to break on the right. Will make a thicker one tomorrow.I left the cases soak in kerosene and on casting edges I had this pure white crystalline build up.I had to scrape it off,anyone know what causes that?.Did not seem to hurt them but still wierd.
    #74
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  15. Junglejeff1

    Junglejeff1 Long timer

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    Finished my mods and cleaning up welds.Hope to have it at powdercoat shop mid week. 20190210_162923.jpg
    #75
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  16. Junglejeff1

    Junglejeff1 Long timer

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    While frame is at powdercoat shop I started on engine.matched the transfer ports to cases and removed casting flaws in ports.Cleaned everything up in preparation for assembly and paint.I don't have a shop manual as they don't have one for this bike.From what I found out the dt 250a/350a manual works but could not find one.Should not be a issue but the internal kickstarter spring is a wierd set up. 20190221_171203.jpg
    #76
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  17. Junglejeff1

    Junglejeff1 Long timer

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    #77
  18. Junglejeff1

    Junglejeff1 Long timer

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    20190226_213444.jpg 20190226_142807.jpg prettied up cylinder and will do head next.Put a 150$ wally world stereo in shop as been spending alot of time out there. Used some spray on stripper from menards on mx 80 fuel tank.Unreal how well that stripper worked.Works better than the brush on stuff from same company. Caught a heck of a buzz working with paint on cylinder today. Having a crazy amount of snow here so glad I have a cool project to do.Friend has a bigger oven than my little pizza oven so going to his shop to powdercoat the cases low gloss black.Don't do cylinders on air cooled bikes as powder holds in alot of heat but paint makes little difference.
    #78
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  19. Junglejeff1

    Junglejeff1 Long timer

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    Finished up the head today.Sprayed it with hi temp paint and rubbed off the fins with paper towel with a little brake cleaner on it. 20190227_160442.jpg
    #79
  20. villageidiot

    villageidiot Long timer Supporter

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    that looks really sharp.

    @Fast Idle i get it, its a good look.
    #80
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