Thanks Firko,
I've read that article before and it is one of the things that inspired me to get a DT-1MX. They were just a little before my time, as I got the "itch" in 1973, reading about "Flying Mike" Brown, in the Mini-Cycle magazines, at our elementary school library.
The historical significance of the DT-1 and especially the DT-1MX are not lost on me. The builder/racer in me wants to "Hot Rod" my bike, but I kind of like the idea of leaving it mostly stock, even if that leaves me at a disadvantage. I always love to root for the underdog.
![Cheesy :D](https://forum.ozvmx.com/Smileys/default/cheesy.gif)
The RT-1 pipe is just a slight miss fit. I will post pics later. I guess I could have someone adjust it, but maybe I should sell it as is to someone else (Need to find out exactly what it fits first). And it looks like I have a regular DT-1 cylinder and not the GYT cylinder that should be on it, but everything else is DT-1MX.
![Grin ;D](https://forum.ozvmx.com/Smileys/default/grin.gif)
Could the GYT cylinder have a slightly different exhaust port angle? Looking at the online Yamaha parts catalogs, every RT-1 pipe (stock or GYT) fits DT-1's 1968-71. It doesn't cross through the frame, so I don't think it is for a DT-2 or later. Maybe a later 360 enduro???