Hi all I have a 73 Yamaha dt250 enduro Looking for help trying to find a modern dirt bike front forks or fork assembly

Welcome to the site! Some knowledgeable people here about that kind of thing. You might use the search function and see what you find. GFrench and a few others have mentioned in threads about using, if I remember correctly, 78 dt250 forks for a little more travel. It seems you can’t go with too much more travel and have to raise the rear to match, which your limited by swing arm length there. In addition to searches on 250s, search 360s also. Good luck!

Be careful if you use leading axle forks as the steering yokes being set back with axle forward of the sliders means the fork tubes will come around & hit the tank--unless you sort out the stops, so don't get caught out by that like i did. Forks i used on my DT1 were from an XT250 [sliders had fins on the base, about a 1980 XT250. TT250 are better forks from the same years of that model & think they're one mm bigger. Forks & yokes have to go together of course. In hindsight the last model of DT250 before leading axle would be 'the go', which was likely 1978.