Posted August 15, 200915 yr Good day All, My question is: how interchangeable are parts from a DT400A (1975) with later year DT400's? I need a new magneto and flywheel but eBay seems to be offering mostly parts from 1977 and 1978. Can I use later model magneto and flywheels on my '75? Cheers, The Menno
August 17, 200915 yr The '75 & '76 (A/B) DT400 & DT250 all used the same flywheel/ignition. Other years might work too.
August 25, 200915 yr Good day All, My question is: how interchangeable are parts from a DT400A (1975) with later year DT400's? I need a new magneto and flywheel but eBay seems to be offering mostly parts from 1977 and 1978. Can I use later model magneto and flywheels on my '75? Cheers, The Menno The dt360 from &$ should have the same flywheel and coil plate...
August 25, 200915 yr The '75 & '76 (A/B) DT400 & DT250 all used the same flywheel/ignition. Other years might work too. No sir they do not. The DT 400 uses a CDI Ignition and the DT 250 has a points Ignition.
January 29, 201015 yr Hi all, one question: Does anybody have a picture of the correct connections of the coils of the magneto of a dt 400 (1976)? I try to restore such a bike and bought it in pieces. thnx in advance regards Jan
January 29, 201015 yr Moderator Hi all, one question: Does anybody have a picture of the correct connections of the coils of the magneto of a dt 400 (1976)? I try to restore such a bike and bought it in pieces. thnx in advance regards Jan someone un-soldered the coils or what jan? ...Paul
January 30, 201015 yr Moderator No sir they do not. The DT 400 uses a CDI Ignition and the DT 250 has a points Ignition. They do from 78 on though, thats when the 250 changed to cdi isn't it?
January 30, 201015 yr No sir they do not. The DT 400 uses a CDI Ignition and the DT 250 has a points Ignition. You can swap a DT400 CDI to a DT250 points setup. A couple members on the Yamaha Enduro forum have done so already when their CDI died. Source: http://64.234.201.42/YamahaForum/showthread.php?t=7558&highlight=dt400+dt250+points You cannot, however, use an ignition from a bike later than '76 on a '75 AFAIK as the design is different. This leaves you with a couple of options. Personally I would swap over a points ignition if you could just to eliminate the CDI once and for all...the electrics are getting old in those, and they can be quite problematic at times, not to mention very expensive if you happen to need a new one. Points are cheap and durable, so you can't go wrong.
January 30, 201015 yr someone un-soldered the coils or what jan? There ya are, meddlin Hi, yes, the coils, the plate, and all the other stuff I have but each by each and now I have to fix it. It would be easier for me to have a photo where I can see the different coloured connections, 'cause I'm not the electric expert by using the connection diagramm. Thanks for replying best regards from northern Germany, Jan
January 31, 201015 yr You can swap a DT400 CDI to a DT250 points setup. A couple members on the Yamaha Enduro forum have done so already when their CDI died. Source: http://64.234.201.42/YamahaForum/showthread.php?t=7558&highlight=dt400+dt250+points You cannot, however, use an ignition from a bike later than '76 on a '75 AFAIK as the design is different. This leaves you with a couple of options. Personally I would swap over a points ignition if you could just to eliminate the CDI once and for all...the electrics are getting old in those, and they can be quite problematic at times, not to mention very expensive if you happen to need a new one. Points are cheap and durable, so you can't go wrong. I agree.
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