[1978 DT 175]

Thanks guys! I think the play is normal also. The welding is definitely been done by someone. I think that street-able bikes had play built in to the clutches vs. mx bikes that don't need the play.

[1978 DT 175]

I am just starting to put the engine back together and when I went to put the clutch basket on I noticed that there is play between the gear and the basket. It moves about an 1/8 of an inch. Is that normal? It doesn't seem to me. I have a spare engine for it and on that clutch basket someone has welded the gear to the plate that is riveted to the basket.

[DT 175 frame number]

Here are the VINs for most Yamaha Dirt Bikes

1971 MINI ENDURO

JT1 SERIAL # JT1-000101 - 041708

JT1 SERIAL # JT1L-200101 - 201152 W/LIGHTS

1972 MINI ENDURO

JT2 COMPETITION SERIAL # JT1-050101 - 071150

JT2 SERIAL # JT1-300101 - 330000 W/LIGHTS

1974 YZ A

YZ 80 A SERIAL # 462-000101 - 009661

YZ 125 A SERIAL # 453-000101 - 007730

YZ 250 A SERIAL # 431-000101 - 004104

YZ 360 A SERIAL # 432-000101 - 000631

1975 YZ B

YZ 80 B SERIAL # 492-000101 - 018570

YZ 125 B SERIAL # 453-100101 - 101620

YZ 250 B SERIAL # 483-000101 - 002759

YZ 360 B SERIAL # 484-000101 - 001459

1976 YZ C

YZ 100 C SERIAL # 1J4-000101 - 003470

YZ 125 C SERIAL # 537-000101 - 014044

YZ 125 X SERIAL # 1G8-000101 - 007120

YZ 175 C SERIAL # 1L8-000101 - 001610

YZ 250 C SERIAL # 509-100101 - 103405

YZ 400 C SERIAL # 510-100101 - 102838

1977 YZ D

YZ 100 D SERIAL # 1J4-000101 - 103550

YZ 125 D SERIAL # 1W1-000101 - 015610

YZ 250 D SERIAL # 1W3-000101 - 006520

YZ 400 D SERIAL # 1W4-000101 - 006720

1978 YZ E

YZ 100 E SERIAL # 2K5-000101 - 006572

YZ 125 E SERIAL # 2K6-000101 - 015080

YZ 250 E SERIAL # 2K7-000101 - 009850

YZ 400 E SERIAL # 2K8-000101 - 007406

1979 YZ F

YZ 100 F SERIAL # 2W5-000101 - N/A

YZ 125 F SERIAL # 2X3-000101 - N/A

YZ 250 F SERIAL # 2X4-000101 - N/A

YZ 400 F SERIAL # 2X5-000101 - N/A

1980 YZ G

YZ 100 G SERIAL # 3R2-000101 - ON

YZ 125 G SERIAL # 3R3-000101 - ON

YZ 250 G SERIAL # 3R4-000101 - ON

YZ 465 G SERIAL # 3R5-000101 - ON

LT SERIES

LTMX Year: 1973 Start Engine#: LT2-105101

MX SERIES

MX100B Year: 1975 Start Engine#: 427-100101

MX100F Year: 1979 Start Engine#: 3M1-000101

MX100G Year: 1980 Start Engine#: 3T0-000101

MX125 Year: 1973 Start Engine#: AT1-325101

MX125A Year: 1974 Start Engine#: 402-000101

MX125B Year: 1975 Start Engine#: 402-100101

MX125C Year: 1976 Start Engine#: 565-000101

MX175A Year: 1974 Start Engine#: 455-000101

MX175B Year: 1975 Start Engine#: 455-100101

MX175F Year: 1979 Start Engine#: 3M2-000101

MX175G Year: 1980 Start Engine#: 3M2-100101

MX250 Year: 1973 Start Engine#: 364-000101

MX250A Year: 1974 Start Engine#: 364-020101

MX250B Year: 1975 Start Engine#: 509-000101

MX360 Year: 1973 Start Engine#: 365-000101

MX360A Year: 1974 Start Engine#: 365-020101

MX400B Year: 1975 Start Engine#: 510-000101

AT SERIES

AT1 Year: 1969 Start Engine#: AT1-100101

AT1B Year: 1970 Start Engine#: AT1-120101

AT1BMX Year: 1970 Start Engine#: AT1-310101

AT1C Year: 1971 Start Engine#: AT1-139101

AT1M Year: 1969 Start Engine#: AT1-300101

AT1MX Year: 1971 Start Engine#: AT1-313101

AT2 Year: 1972 Start Engine#: AT1-165101

AT2M Year: 1972 Start Engine#: AT1-317101

AT3 Year: 1973 Start Engine#: AT1-200101

CT SERIES

CT1 Year: 1971 Start Engine#: CT1-000101

CT1B Year: 1970 Start Engine#: CT1-010101

CT1C Year: 1971 Start Engine#: CT1-200101/CT1-032101

CT2 Year: 1972 Start Engine#: CT1-065101

CT3 Year: 1973 Start Engine#: CT1-100101

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

Comments On This Article?

[1975 YZ250B]

I have no spark. Does anyone have meter readings for the stator coils?

Claude