Kawi2strokes.com Forum

Hi, I am just about to start a rebuild on a dt250 which is marked on the headstock as 9/76 and has points ignition, however it has the monoshock frame and when I try the several sites to Id the bike from the engine or chassis part number it comes out as a 77 (D) model. As the manuals are either 75-76 or 77-79 I really need one or the other. Any ideas why I have this conflict. Engine and chassis numbers are matching; 1R8000106. Steve.

I found a lot of weirdness on DTs and ITs..... I sleuth-ed a pretty good vin chart a while back - need to find it.

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This is true. Where I grew up the hills were so steep and long, when your ball rolled down the hill you just said "screw it"...

They can't just start building bikes the model year they are, they have to start the previous year. So most late in the year builds are actually the following year model.

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Twist the throttle, tilt the horizon, and have a great time. What triples are all about...........

Thanks JM I understand that but if the engine is points and the frame is the later one which manual am I working out of? The exhaust comes out the right whereas the 76 is the left so I`m comfortable that the chassis is 77 but as the engine is points which manual? Manuals are not cheap and I don`t want to buy one for the frame and one for the engine. Which wiring harness would I buy and how would a harness set up for cdi ignition be wired for points ignition? I was hoping to jag someone who has the exact mod but that`s a long shot, I have tried several Yamaha 2 stroke sites but no replies whatsoever.

called 250 DTMX in Europe 77 and after model

I have at DT100 and wanted a manual. I searched for a while and found an inexpensive PDF file of it. I suspect if you snoop around the forums and search long enough, you can find a cheap or free one for the DT250.

I found this list of manuals that has the DT250 parts manuals available: http://forums.sohc4.net/?topic=17788.0 and the DT250BC version has a page labeled "FLYWHEEL MAGNETO DT250E" that shows a points magneto system. The next page shows "C - D - I - MAGNETO". It's not clear why the DT250E page is in the BC manual, but it sort of looks like the D and E may have been available with points or CDI.

Of course I could be wrong, and someone could have swapped alternators or the whole engine on yours. I bet you can get the full story by asking on a Yamaha DT forum.

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If it surges, that's normal, upshift.

I don't see a 1R8--. I did see one of my crappy lists with a 1R7 mentioned but only a range year.

I have this:
DT1B 1969 250 DT1 Dual Purpose DT1 DT1-15001
DT1C 1970 250 DT1 Dual Purpose DT1 DT1-50101
DT1C-MX 1970 250 DT1MX Dual Purpose DT1 DT1-95101
DT1E 1971 250 DT1 Dual Purpose DT1 DT1F-00101/DTF-020101
DT1MX 1971 250 DT1MX Dual Purpose DT1 DT1F-090101
DT1S 1969 250 DT1S Dual Purpose DT1 DT1-90101
DT2 1973 250 DT2 Dual Purpose DT2 DT1F-105101
DT250A 1974 250 DT250 Dual Purpose 450 450-000101
DT250B 1975 250 DT250 Dual Purpose 450 450-200101
DT250C 1976 250 DT250 Dual Purpose 450 450-500101
DT250D 1977 250 DT250 Dual Purpose 1M7 1M7-000101
DT250E 1978 250 DT250 Dual Purpose 1M1 1M1-100101
DT250F 1979 250 DT250 Dual Purpose 2N6 2N6-000101
DT2MX 1972 250 DT2MX Dual Purpose DT1 DT1F-185101

DT SERIES
DT100A Year: 1974 Start Engine#: 437-000101
DT100B Year: 1975 Start Engine#: 437-100101
DT100B5 Year: 1975 Start Engine#: 540-000101
DT100C Year: 1976 Start Engine#: 558-000101
DT100D Year: 1977 Start Engine#: 1T9-000101
DT100E Year: 1978 Start Engine#: 2F5-000101
DT100F Year: 1979 Start Engine#: 2F5-050101
DT100G Year: 1980 Start Engine#: 3A3-000101
DT125A Year: 1974 Start Engine#: 444-000101
DT125B Year: 1975 Start Engine#: 444-100101
DT125C Year: 1976 Start Engine#: 560-000101
DT125E Year: 1978 Start Engine#: 2A6-000101
DT125F Year: 1979 Start Engine#: 2N4-000101
DT125G Year: 1980 Start Engine#: 3J0-000101
DT175A Year: 1974 Start Engine#: 443-000101
DT175B Year: 1975 Start Engine#: 443-100101
DT175C Year: 1976 Start Engine#: 559-000101
DT175D Year: 1977 Start Engine#:
DT175E Year: 1978 Start Engine#: 2A7-000101
DT175F Year: 1979 Start Engine#: 2N5-000101
DT175G Year: 1980 Start Engine#: 3J1-000101
DT1 Year: 1968 Start Engine#: DT1-00101
DT1B Year: 1969 Start Engine#: DT1-15001
DT1C Year: 1970 Start Engine#: DT1-50101
DT1CM Year: 1970 Start Engine#: DT1-95101
DT1E Year: 1971 Start Engine#: DT1F-00101/DTF-020101
DT1MX Year: 1971 Start Engine#: DT1F-090101
DT2 SERIES
DT2 Year: 1972 Start Engine#: DT1F-105101
DT250A Year: 1974 Start Engine#: 450-000101
DT250B Year: 1975 Start Engine#: 450-200101
DT250C Year: 1976 Start Engine#: 450-500101
DT250D Year: 1977 Start Engine#: 1M1-000101
DT250E Year: 1978 Start Engine#: 1M1-100101
DT250F Year: 1979 Start Engine#: 2N6-000101
DT2M Year: 1972 Start Engine#: DT1F-185101
DT3 SERIES
DT3 Year: 1973 Start Engine#: DT1F-135101
DT360A Year: 1974 Start Engine#: 446-000101
DT400C Year: 1976 Start Engine#: 501-200101
DT4 SERIES
DT400D Year: 1977 Start Engine#: 1M2-000101
DT400E Year: 1978 Start Engine#: 1M2-100101

DT1 1968 DT1-000101 DT1-14090 Pearl White
DT1B 1969 DT1-015001 DT1-42520 Candy Orange
DT1S 1969 DT1-90101 DT1-91573 Candy Orange
DT1C 1970 DT1-050101 DT1-66389 Brillant Red
DT1C-MX 1970 DT1-095101 DT1-97268 Brillant Red
DT1E 1971 DT1F-00101 DT1-03492 Mandrian Orange
DT1E 1971 DT1F-020101 DT1F-045120 Mandrian Orange
DT1E-MX 1971 DT1F-090101 DT1F-093684 Mandrian Orange
DT2 1972 DT1F-105101 DT1F-134257 Pearl Yellow Gold
DT2MX 1972 DT1F-185101 DT1F-195339 Silver
DT3 1973 DT1F-135101 DT1F-162633 Comp. Green 
DT250A 1974
DT250B 1975 Competition Red/Black/While

DT SERIES
DT100A Year: 1974 Start Engine#: 437-000101
DT100B Year: 1975 Start Engine#: 437-100101
DT100B5 Year: 1975 Start Engine#: 540-000101
DT100C Year: 1976 Start Engine#: 558-000101
DT100D Year: 1977 Start Engine#: 1T9-000101
DT100E Year: 1978 Start Engine#: 2F5-000101
DT100F Year: 1979 Start Engine#: 2F5-050101
DT100G Year: 1980 Start Engine#: 3A3-000101
DT125A Year: 1974 Start Engine#: 444-000101
DT125B Year: 1975 Start Engine#: 444-100101
DT125C Year: 1976 Start Engine#: 560-000101
DT125E Year: 1978 Start Engine#: 2A6-000101
DT125F Year: 1979 Start Engine#: 2N4-000101
DT125G Year: 1980 Start Engine#: 3J0-000101
DT175A Year: 1974 Start Engine#: 443-000101
DT175B Year: 1975 Start Engine#: 443-100101
DT175C Year: 1976 Start Engine#: 559-000101
DT175D Year: 1977 Start Engine#:
DT175E Year: 1978 Start Engine#: 2A7-000101
DT175F Year: 1979 Start Engine#: 2N5-000101
DT175G Year: 1980 Start Engine#: 3J1-000101
DT1 Year: 1968 Start Engine#: DT1-00101
DT1B Year: 1969 Start Engine#: DT1-15001
DT1C Year: 1970 Start Engine#: DT1-50101
DT1CM Year: 1970 Start Engine#: DT1-95101
DT1E Year: 1971 Start Engine#: DT1F-00101/DTF-020101
DT1MX Year: 1971 Start Engine#: DT1F-090101

DT2 SERIES
DT2 Year: 1972 Start Engine#: DT1F-105101
DT2M Year: 1972 Start Engine#: DT1F-185101
DT250A Year: 1974 Start Engine#: 450-000101
DT250B Year: 1975 Start Engine#: 450-200101
DT250C Year: 1976 Start Engine#: 450-500101
DT250D Year: 1977 Start Engine#: 1M1-000101
DT250E Year: 1978 Start Engine#: 1M1-100101
DT250F Year: 1979 Start Engine#: 2N6-000101

DT3 SERIES
DT3 Year: 1973 Start Engine#: DT1F-135101
DT360A Year: 1974 Start Engine#: 446-000101
DT400C Year: 1976 Start Engine#: 501-200101

DT4 SERIES
DT400D Year: 1977 Start Engine#: 1M2-000101
DT400E Year: 1978 Start Engine#: 1M2-100101

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This is true. Where I grew up the hills were so steep and long, when your ball rolled down the hill you just said "screw it"...

I know. They are all conflicting. I just googled Yamaha and the engine part number and that`s how I got the list with the 1R8 as a Dt250D. I have decided to just buy the 77 manual as there are several fittings or pics of fittings which point to it being the 77 not 76 chassis, and obviously the engine is as per 76 with points, the only problem will be matching the wiring as it comes out of the magneto of a points engine with the connections of the D or 77 harness. Just see what happens I suppose. And thanks all. Steve.

here covers of brochures from most of off road yamaha road legal
http://dtmx125.free.fr/