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  1. M

    75 Yamaha DT400 build

    thanks man. I used duplicolor for the silver base coat and then same brand clear blue anodized look over the base. and then k2000 2 part clear. looks great in the sun
  2. M

    75 Yamaha DT400 build

    I changed the pipe to try a different formula. the original one I made was for a lower rpm torque, at least according to the software. this pipe dose help the midrange a little better but it needs the right jetting still.
  3. M

    75 Yamaha DT400 build

    I guess I wasn't finished messing with the pipe. I decided to change the shape so I cut it up, made a new silencer and a fatter mid and then messed with jetting some more. made it legal . the pilot jet is giving me a hard time. wont settle down well even though ive gone richer on it.
  4. M

    75 Yamaha DT400 build

    Hey thanks Jadus i did not know about those flashers. they look like the perfect fix for all LED signals. ive talked to a lot of guys who have had this issue and end up with load resistors or conventional lights in the circuit. i like the idea of low power draw from my tail, brake and turn...
  5. M

    August 2015 BOTM - Voting! Brought to you by JustinLonghorn and the letter A

    Thanks so much . I really flattered to be nominated. I love all the feedback and ideas I have gotten from being on this site. ill be posting more as I update the hydroformed pipe. its been a blast riding this thing around my town, perfect nimble back road bike. thanks again for nominating ...
  6. M

    1976 TS 185 Scrambler/ Tracker/ Vintage Grom

    I use several software programs and my autocad program for laying out and printing templates. i started an expansion chamber design / build thread on another site http://www.2strokeworld.com/forum/index.php?topic=28024.0 where i list several programs some you can get free. i would be happy to...
  7. M

    1976 TS 185 Scrambler/ Tracker/ Vintage Grom

    I would love to make you a hydroformed pipe, but I would need the bike or one like it to fit as well as the port timings, size and shape of the ports as well. I have thought of making general pipe parts like 7 deg diffuser with a belly section and then 10 - 12 deg baffle cones with some slight...
  8. M

    putt putt mt250s

    That pipe turned out nice. I love low slung chambers
  9. M

    1976 TS 185 Scrambler/ Tracker/ Vintage Grom

    very cool. I like it so far. I always loved the TS bikes. almost had a 73 ts250 for my latest project but ended up with my DT instead. keep up the good work !
  10. M

    75 Yamaha DT400 build

    I had one issue I finally solved, running all LED turn signals without load resistors. I am using a tiny 12v 3 Ah lithium ion battery in the bike and its only needs to run the LED tail light and turn signals. but every flasher relay ive tried dose not work right at all. they say LED specific but...
  11. M

    75 Yamaha DT400 build

    Thanks Loctite. hydroforming was really fun. im making a pipe for my vintage arctic cat this way too. not that hard really. Awesome Honda CB by the way.
  12. M

    75 Yamaha DT400 build

    I agree with that too. I tried to mount rear sets but have not found a way and still have a kick starter, no electric on these. that's one area I will tinker on in time.
  13. M

    75 Yamaha DT400 build

    thanks so much guys. I had a lot of fun making this project. light minimal big bore vintage 2 stroke street toy is what I was after. got the jetting sorted a bit better and it is smooth but pulls hard, still getting used to its wheelie power band lol
  14. M

    75 Yamaha DT400 build

    finally have it finished for the most part and riding. its a Beast! comes on the pipe early and lofts the front . added a minicell foam seat finally , sanded and shaped it and glued it down. needs adjustments and a little jetting tweak still
  15. M

    75 Yamaha DT400 build

    thanks AMD. i appreciate the praise. building bikes is like sculpting :)
  16. M

    75 Yamaha DT400 build

    thanks , i like the look of this pipe. i will make another with a fatter mid section when i get a better carb and reeds. you should try the hydro forming. it should be a thread on here maybe. i found 3 free pipe programs and one you have to pay for. did a lot of reading and even found a 2...
  17. M

    75 Yamaha DT400 build

    there is several free programs available I found as well as the one I posted the image of that I paid for to design expansion chambers. pretty simple really. I use autocad to layout the actual template and convert the diameters to half the circumference as the cut pattern. the bends get tighter...
  18. M

    75 Yamaha DT400 build

    the hydro-forming is pretty cool and actually easy with the tools. you can make the seams go away by bending the edges over toward each other and making a lap joint. weld it good and clean, expand it with a pressure washer and then carefully grind the remaining weld down some. I personally like...
  19. M

    75 Yamaha DT400 build

    Thanks for moving the thread. belongs here.
  20. M

    75 Yamaha DT400 build

    that is a great idea to use an app to calculate the mix. ill look into that. some more updates. had to add a silencer so I hydroformed a small part, cut the end of the pipe some and added the stinger inside the cone ( I believe bell mentions this in his book ) and added a curved tip that...
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