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Makotosun

1975 400MX pipe on DT400

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1975 400MX pipe on DT400 was created by Schu

Will the exhaust from a 75 MX400 fit properly on a 75 DT400?
Schu

CT1B, CT1C, JT1, JT2, DT360A, GT80B, DT100B, DT125B,
DT175B, DT175C, DT250B, DT400B, Z50, SCR950

Someday, you'll own some Yamahas
01 Mar 2020 18:22 #1

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Replied by Lizeec on topic 1975 400MX pipe on DT400

I can’t say with 100% certainty, but I doubt it, a couple of obvious differences is the 1975 MX exits on the right side of the bike and the 1975 DT exits on the left hand side of the bike. They are also different on how they exit on the cylinder on the engine, and the heads fins are recessed in different locations.
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01 Mar 2020 19:40 #2

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Replied by Schu on topic 1975 400MX pipe on DT400


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Replied by mrbigg7255 on topic 1975 400MX pipe on DT400

I’ll let you know in a few days. Just pulled my dad’s old 400c outta storage. It has a leaking head gasket due to a helicoiled head stud that failed. After reading the Super DT thread, I decided to go with the YZ/IT cylinder/head combo.
I highly doubt it’ll clear with the stock head as the fins are probably too tall. Oil tank will have to go.
The pipe in that ad you posted is missing the head pipe.
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06 Mar 2020 13:20 #4

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