Vintage Yamaha Cylinder Swap?

mx400bee
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mx400bee
Edited Date/Time 1/26/2012 12:34pm
Would anyone know if there is an MX or YZ 250 cylinder that will fit on 72` DT2 Enduro cases? Bore and stroke are the same but I wasn`t sure if the newer model case design and bolt pattern were the same.
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xnationalwrench 11/16/2010 12:45pm
11/16/2010 12:45pm
Its been so long since I messed with the DT2's and MX2's I'm not 100% sure but think they will swap, check a parts book and see if the base gasket is the same.
slowvet
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slowvet 11/16/2010 1:50pm
11/16/2010 1:50pm
xnationalwrench wrote:
Its been so long since I messed with the DT2's and MX2's I'm not 100% sure but think they will swap, check a parts book and...
Its been so long since I messed with the DT2's and MX2's I'm not 100% sure but think they will swap, check a parts book and see if the base gasket is the same.
Noguchi comes to mind.
indy_maico
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indy_maico 11/16/2010 2:01pm
11/16/2010 2:01pm
The first couple years of the YZ250 (the strap tank ones including the first monoshock), the motor was based on the old DT1 motor.

In 1974, the DT250A used a new motor with different cases and the MX250 from that year onwards and I think the 1975 YZ250 onwards used those cases. I don't think the later cylinders fit on the old DT1-DT2 and DT3 cases.
mx400bee
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mx400bee 11/16/2010 3:56pm
11/16/2010 3:56pm
Thanks for the info guys. I checked the base gaskets like "Wrench" said and everything that indy_maico said is 100% correct.

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indy_maico
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indy_maico 11/17/2010 6:55am
11/17/2010 6:55am
mx400bee wrote:
Thanks for the info guys. I checked the base gaskets like "Wrench" said and everything that indy_maico said is 100% correct.
I can't remember what my wife told me 5 minutes ago, but I can remember 35 year old motorcycle stuff.

No wonder I drive her crazy!

xnationalwrench 11/17/2010 7:27am
11/17/2010 7:27am
mx400bee wrote:
Thanks for the info guys. I checked the base gaskets like "Wrench" said and everything that indy_maico said is 100% correct.
indy_maico wrote:
I can't remember what my wife told me 5 minutes ago, but I can remember 35 year old motorcycle stuff.

No wonder I drive her crazy!

Wife?? where did I leave her at?? LOL

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