1974 dt400

Discussion in '2 smokers' started by georgej, Aug 4, 2012.

  1. georgej

    georgej Been here awhile

    Joined:
    Nov 9, 2008
    Oddometer:
    207
    Location:
    Upstate,N.Y.
    I have a chance to get a DT400 for $800. the bike is stock and running. The owner tells me the woodruff key broke and he replaced it and it broke again.He replaced it again and said the problem is that it need the correct one from Yamaha. This is the only known problem with the bike. And no title. What do you think? It would make a good woods bike wouldn't it?
    #1
  2. Bleary

    Bleary Adventurer

    Joined:
    Oct 10, 2010
    Oddometer:
    20
    I think '75 was the first year of the 400. This was probably made in '74 as a '75 model.

    Woods bike? I guess it depends on how fast you want to go. Suspension is not very good and they are pretty darn heavy. But if that was the bike I had... it would be my woods bike until I could get something more modern and lighter.

    Yes, get the correct woodruff key. You may still have issues if where the crank contacts the flywheel is buggered up. You may have to use some lapping compound to make sure you have good contact. Also you have to replace the crank seals, its not that hard but it must be done so you don't suck air and seize the piston.
    #2
  3. Shocktower

    Shocktower Long timer

    Joined:
    Jul 27, 2009
    Oddometer:
    9,535
    Location:
    Oregon City Orygun
    Yeah the magneto will slip with a greasy shaft, and break that thing, clean the shaft and magneto taper Oh yeah it is a fine woods bike :D
    #3
  4. Hunsta

    Hunsta Have guns will hunt

    Joined:
    Jan 25, 2006
    Oddometer:
    5,491
    Location:
    Gympie Queensland Australia
    Hell yeah. Yes the 400 replaced the 360 in late `74. They are "the ducks nuts Max". Suspension is and will be a bit wooden, but I have always had the opinion that if you can ride the wheels off something that really wooden, you`ll be so much better when you step up to the 21st century.
    The bikes a classic. Get it for the hell of it. They dont make em like this anymore.
    #4
  5. georgej

    georgej Been here awhile

    Joined:
    Nov 9, 2008
    Oddometer:
    207
    Location:
    Upstate,N.Y.
    I got the bike,paid $500 for it. I started a new thread stating I got this bike and probably shouldn't have(started a new thread).i apologize in advance to those I have annoyed or offended.
    #5