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Yamaha DT 400 discussions

1979 Yamaha DT 400 MX. Picture submitted by anonymous user.	Discuss the Yamaha DT 400 models without registering or logging in. Simply enter questions, comments or answers. We specially welcome comments on technical issues, riders' experiences, tips on styling and performance enhancements and references to tests. You may also sell or request parts. Use the button below to write extensive reviews with pictures.
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Discussion topics for Yamaha DT 400 motorcycles:

Dt 400 parts (By ian r, 2022-08-01)
Lost our keys (By Chris McGahey, 2021-08-09)
- RE: Lost our keys (By Brett, 2022-06-12)
1st Bike (By William Dakin, 2019-09-22)
bill (By bill best, 2017-12-04)
Adrian (By Buell100, 2017-06-27)
Tim (By Tim, 2017-01-23)
1977dt400 (By Tom, 2017-01-11)
Boîtier cdi yamaha 400 dtmx (By Allroad, 2015-09-01)
yamman1 (By walkawalka@hotma, 2015-08-25)
1979 dt 400 (By nick judd, 2015-03-11)
-colin (By popstweaks, 2015-03-08)
Aldo (By Alan Blatchley, 2015-01-27)
TomVette Colorado (By tom, 2014-08-20)
- RE: TomVette Colorado (By max, 2018-09-21)
Grande (By Grande1232, 2014-06-02)
Position of choke lever (By Pete Howlett, 2013-06-23)
Modified 400 Dt 397 cc (By Jeremy Mckenzie, 2013-04-30)
need pulsar coil (By rock jones, 2013-03-28)
i am selling yamah 1976 dt400 engine (By glenlind, 2012-09-15)
MR. (By SCOTT A ANDERSON, 2012-02-20)
dt 400 voltage (By Linxx, 2011-11-17)
- RE: dt 400 voltage (By Xraybob, 2014-03-14)
Just bought a DT 400B in a storage shed (By repoman527, 2011-11-15)
freddy bear (By fred lamm, 2011-09-09)
Buddy Pegs for ´77 DT400, is it possible? (By Curious, 2011-08-13)
COLOR (By Tommy g, 2011-06-03)
1978 Yamaha DT 400 Enduro (By Dan Spitzbardt, 2011-05-14)
Lock up (By onesofa, 2011-01-18)
darren (By darren, 2010-12-09)
Fork oil capacity, 1975 Yamaha dt 400 (By Timb, 2010-08-31)
Yamaha DT 400 ´78 (By H Neuteboom, 2010-08-19)
- RE: Yamaha DT 400 ´78 (By colin, 2010-10-04)
magneto question (By brokeyamaha, 2010-08-04)
- RE: magneto question (By brokeyamaha, 2010-08-04)
Fuel to air mixture problems (By Curtis schielke, 2010-05-27)
1975 DT400 Jetting (By Chad, 2010-05-18)
1978 DT 400 Timing (By dale, 2010-04-09)
1975 DT400 (By Hammer, 2010-04-02)
Piston for DT 400 (By SharonC, 2010-03-14)
Does it have potential? (By Zemmy, 2010-01-05)
- RE: Does it have potential? (By colin, 2010-11-21)
DT 400 CARB? (By DUNNER3@AOL.COM, 2009-07-07)
dt 400 (By Smeagoldog, 2009-05-05)
SURGING AND BOGGING DOWN (By macintyreservice, 2009-03-11)
restoration parts (By Pooch, 2009-01-25)
- RE: restoration parts (By Randal, 2010-05-23)
´75 Yamaha DT400 - (By VMHome, 2008-12-14)
75 dt 400 (By James, 2008-12-08)
Mr. (By av8r62, 2008-12-03)
Mark L (By gutless74, 2008-11-06)
yamaha DT400 (By orlando matos, 2008-09-04)
- RE: yamaha DT400 (By colin, 2010-09-10)
1975 DT 400 Wiring Harness etc. (By kobascle, 2008-05-06)
- RE: 1975 DT 400 Wiring Harness etc. (By zane, 2009-09-19)
new bike builder (By gettingstarted, 2008-04-25)
joe (By HMS#88, 2008-04-07)
- RE: joe (By Jute01, 2008-04-30)
retired (By Ke Sanburg, 2008-03-02)
Great Bike (By Fabian, 2007-12-22)
YAMAHA DT400 1978 (By JOSE GARCIA, 2007-11-20)
- RE: YAMAHA DT400 1978 (By Jute01, 2008-02-07)
- RE: YAMAHA DT400 1978 (By mike, 2008-08-23)
DT400 REAR WHEEL LOCKED UP (By RICK, 2007-11-12)
Troy (By tjw, 2007-09-28)
oil injection pump [autolube] 77 DT 400 (By motox500, 2007-08-15)
- RE: oil injection pump [autolube] 77 DT 400 (By jb, 2008-06-05)
Front wheel meter gear (By Reedy 08-02-07, 2007-08-02)
DT250 point ignition on DT400 ? (By alfen, 2007-05-29)
- RE: DT250 point ignition on DT400 ? (By Darren Massaro, 2009-09-03)
- RE: DT250 point ignition on DT400 ? (By yaman, 2009-10-26)
  - RE: DT250 point ignition on DT400 ? (By Darren Massaro, 2009-10-26)
    - RE: DT250 point ignition on DT400 ? (By yaman, 2009-10-26)
      - RE: DT250 point ignition on DT400 ? (By Darren Massaro, 2009-10-26)
        
        RE: DT250 point ignition on DT400 ? (By yaman, 2009-10-27)
        
        RE: DT250 point ignition on DT400 ? (By Darren, 2009-10-28)
        
        RE: DT250 point ignition on DT400 ? (By yaman, 2009-10-28)
        
        RE: DT250 point ignition on DT400 ? (By Darren, 2009-10-28)
        
        RE: DT250 point ignition on DT400 ? (By YAMAN, 2009-10-28)
        
        RE: DT250 point ignition on DT400 ? (By Darren, 2009-10-28)
        
        RE: DT250 point ignition on DT400 ? (By yaman, 2009-10-29)
        
        RE: DT250 point ignition on DT400 ? (By yaman, 2009-10-31)
Yamaha DT250A (By alfen, 2007-05-29)
Rear tire locks up (By Jesse, 2007-05-13)
RE: where i can get a magnetic flywheel (By Phil in MI, 2007-04-17)
Wanted! Front Fender 1975 Yamaha DT400 (By Stanford Shaw, 2007-02-07)
- RE: Wanted! Front Fender 1975 Yamaha DT400 (By larry.bruggeman@, 2008-09-19)
Running problems (By C w, 2007-01-24)
- RE: Running problems (By bcalmer, 2009-07-01)
- RE: Running problems (By THE-MAN, 2014-12-08)
serge (By serge, 2006-11-14)
Coils inside the magnetp (By am, 2006-11-12)
need advice from an old boy who used to ride a dt 400 (By trevi, 2006-10-30)
- RE: need advice from an old boy who used to ride a dt 400 (By michael, 2006-11-02)
  - RE: need advice from an old boy who used to ride a dt 400 (By Trevi, 2006-11-02)
    - RE: need advice from an old boy who used to ride a dt 400 (By michael, 2006-11-03)
      - RE: need advice from an old boy who used to ride a dt 400 (By michael, 2006-11-03)
  - RE: need advice from an old boy who used to ride a dt 400 (By gary harmon, 2006-11-03)
IDELS TOO FAST (By MAX, 2006-09-15)
hard starting dt 400 (By t.j, 2006-08-18)
- RE: hard starting dt 400 (By holleycarb, 2007-08-01)
- RE: hard starting dt 400 (By bcalmer, 2009-07-01)
- RE: hard starting dt 400 (By marcg, 2010-07-01)
- RE: hard starting dt 400 (By bob roberts, 2014-11-03)
RE: dt400 running too rich no matter what i do. (By Dr. Lumba, 2006-07-04)
desertdude (By jviernes, 2006-06-06)
- RE: desertdude (By novawingnut, 2006-07-04)
mixture at the carb (By nunn, 2006-05-13)
looking for a pulser coil for DT400 76 (By Matt, 2006-05-11)
- RE: looking for a pulser coil for DT400 76 (By kaiom, 2009-09-26)
dt400 running too rich no matter what i do. (By mark dobson, 2006-05-04)
- RE: dt400 running too rich no matter what i do. (By Hustler, 2015-07-26)
I have ´77 DT400D FORSALE (By Wizard-Of-Aaahhs, 2006-04-27)
- RE: I have ´77 DT400D FORSALE (By ROCDOC, 2007-02-05)
dt 400 engine with yz490 topend? for sale (By mark, 2006-03-18)
- RE: dt 400 engine with yz490 topend? for sale (By alien, 2006-03-26)
- RE: dt 400 engine with yz490 topend? for sale (By nate, 2010-04-06)
1978 DT 400E Air Box (By Bret, 2005-12-26)
- RE: 1978 DT 400E Air Box (By mark, 2010-05-31)
Engine Parts Differences (By Joseph Roberts, 2005-11-30)
trouble finding oil pump/carb cables (By mark dobson, 2005-11-07)
Forks 34mm ? ? ? ? (By Roy, 2005-10-28)
- RE: Forks 34mm ? ? ? ? (By arjuna400, 2006-09-13)
  - RE: Forks 34mm ? ? ? ? (By Roy, 2007-04-19)
77 dt 400 (By frank, 2005-10-22)
- RE: 77 dt 400 (By gary harmon, 2006-10-03)
6 Volt to 12? (By MFW, 2005-09-18)
- RE: 6 Volt to 12? (By alien, 2006-03-26)
  - RE: 6 Volt to 12? (By John, 2008-11-27)
Hi I have a question. (By Barrie Ogle, 2005-07-21)
where i can get a magnetic flywheel (By alois Tremml, 2005-07-09)
- RE: where i can get a magnetic flywheel (By alien, 2006-03-26)
where i can get a magnetic flywheel (By alois Tremml, 2005-07-09)
Looking for 400 parts? (By John Viernes, 2005-01-13)
- RE: Looking for 400 parts? (By alan harvey, 2013-08-02)
Where can i buy spare parts (By Alex Martinez, 2004-12-30)
- RE: Where can i buy spare parts (By Matt, 2006-05-11)
Peter (By skillee, 2004-10-22)
overhaul (By john, 2004-07-20)
- RE: overhaul (By dt mechanic, 2004-11-15)
- RE: overhaul (By The Joker, 2005-09-11)
Mr (By Nigel Brooks, 2004-06-02)
- RE: Mr (By mike, 2008-08-23)
Dt Madness! (By Kyle face killa, 2004-05-20)
1975 dt 400 (By ja, 2004-05-13)
seat removal??? no manual (By NN, 2004-04-11)
- RE: seat removal??? no manual (By Phil in MI, 2007-04-17)
RE: Comment (By NN, 2004-04-08)
- RE: (By nstyle73, 2007-01-12)
Can´t get spark (By Pat D, 2004-04-05)
- RE: Can´t get spark (By adam, 2004-10-22)
- RE: Can´t get spark (By Mike. B., 2007-03-27)
  - RE: Can´t get spark (By Paul Lastrucci, 2007-04-02)
    - RE: Can´t get spark (By tk, 2010-06-20)
- RE: Can´t get spark (By Phil in MI, 2007-04-17)
need info (By NN, 2003-05-31)
- RE: need info (By nick judd, 2015-03-11)
start uu (By james, 2003-05-12)
- RE: start uu (By Alex, 2003-10-14)
USER OF DT-400 IN THE PHIL (By NN, 2003-04-19)
- RE: USER OF DT-400 IN THE PHIL (By endodrob, 2004-03-28)
- RE: USER OF DT-400 IN THE PHIL (By Shawn, 2004-07-30)
1975 YAMAHA DT 400 (By NN, 2003-04-11)
- RE: 1975 YAMAHA DT 400 (By Carlos, 2004-04-30)
- RE: 1975 YAMAHA DT 400 (By bcalmer, 2009-07-01)
- RE: 1975 YAMAHA DT 400 (By joshua veilleux, 2022-08-11)
Andrew (By NN, 2003-03-18)
1978 Yamaha DT400 (By NN, 2002-05-15)
- RE: 1978 Yamaha DT400 (By NN, 2002-06-03)
- RE: 1978 Yamaha DT400 (By I can get anything !!, 2002-08-01)
  - RE: 1975 dt 400 (By need to have this bike, 2002-12-06)
    - RE: 1975 dt 400 (By mike, 2008-08-23)
  - RE: 1978 Yamaha DT400 (By NN, 2003-09-20)
  - RE: 1978 Yamaha DT400 (By Bret, 2005-12-26)
  - RE: 1978 Yamaha DT400 (By ORLANDO MATOS, 2008-09-13)
  - RE: 1978 Yamaha DT400 (By sok, 2012-01-09)
- RE: 1978 Yamaha DT400 (By Clayts, 2004-05-13)
  - RE: 1978 Yamaha DT400 (By Clayts, 2004-05-13)
    - RE: 1978 Yamaha DT400 (By Mark Fairbank, 2007-06-03)
- RE: 1978 Yamaha DT400 (By J. Bryan, 2007-03-15)
- RE: 1978 Yamaha DT400 (By justin, 2009-07-23)
clutch replacment (By NN, 2002-03-31)
repair manuel (By NN, 2002-03-31)
- RE: repair manuel (By Michael Fox, 2006-11-29)
- RE: repair manuel (By H. Neuteboom, 2010-08-19)

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Discussion forums for individual Yamaha DT 400 motorcycles:

1979 Yamaha DT 400 MX (Enduro/offroad, 397 ccm)
1978 Yamaha DT 400 MX (Enduro/offroad, 397 ccm)
1977 Yamaha DT 400 (Enduro/offroad, 397 ccm)

1976 Yamaha DT 400 (Enduro/offroad, 397 ccm)
1975 Yamaha DT 400 (Enduro/offroad, 397 ccm)

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