DT250F performance half-assary for the street
I got the bike for $250 with my dad and the intention was he bought it, and i'd fix it and then we'd sell it and split the profit. well i decided this bike is quirky and I like it. I like things that get complicated to modify, and of course I picked this one year bike as far as engine junk goes.
-I replaced the crank seals and clutch frictions
-cleaned/soaked the carb
-cleaned the jets that were in it, needs a fatter pilot jet, undetermined on the main jet as of now
-replaced the fron tire and tube
-replaced the missing airfilter with a uni
-set the air screw to 1/8-1/4 turn out
-fuel screw to 2-1/4 or more and it still hangs like its lean until i bump the enrichener
Need To do still:
- I have new fork seals, oil and dust, and some cheap ebay for boots/gaitors that I hope fit so i can replace the tattered ones on the bike.
-replace the battery and check the electronics
-replace speedo cable/ see why its not working!
-set squish with new 77 DT head with a centered combustion chamber
-cut open stock pipe and remove the internal garbage and perhaps fab up a cone for the end of the chamber
-uncorck factory silencer or replace with another lighter aluminum silencer like the turbine core 2 from FMF
-widen and polish exhaust port, open up transfer ports like the IT's and match the cases, I wont be raising any ports. Have some nice reference material for this thanks to some nice guys on facebook
-Im thinking about boysen ports, although ive been told they aren't necessary, I did them on an old 175 and a blaster with seat of the pants results(or so I think)
-probably find a slightly larger carb(not sold on that yet), mathing intake boot
-maybe some better reeds
If I'm happy with all of that then I may decide to start a custom type of build and ditch a lot of factory body work and maybe even the front end for a USD conversion, Maybe an oldschool take on a supermoto. Who knows!?!
Anyway, Im open to any suggestions or helpful input about my plans as I tackle this project slowly but surely. Im also restoring a square body chevy along with the XL 500 project that is in my introduction thread.
The slight rev hang is normal you think? My dads rt1 and ct3 settle to idle much faster.
fmxr47 wrote: Does anyone know if a CT3 tank will fit over the monoshock on this bike? My dad has the original tank from his CT that’s in pretty good shape and I prefer them over the ugly 79 DT tank. My side covers are in poor shape so I’m thinking of possibly making some of my own covers if I get that ambitious.
I believe the tunnel area on the pre-monoshock bikes is significantly narrower than the tunnel on the monoshockers. Plus, the frame on the 175 and smaller bikes is smaller than the frame on the 250-400 series bikes. I would be very surprised if it would fit.