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Will a Maico 400 crank fit into a 250 case?

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Hi, I have a 78 Maico 250 that I would like to make into a 400.complete engines are hard to come by so I was wondering if a 400 crank and top end would fit into my case? anybody tried this?

 

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Yes, it will work. you need to remove crank stuffers.. The primary ratios are different.

Edited by Eastcoastmaico

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Thank you East Coast Maico

If you have any more information about doing this, I would love to hear it.

Thanks Brent

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I wouldn't think the gear ratios would be an issue, correct?

Would the 250 ignition work or would I need a 400 CDI?

Would the 250 pipe work?

I am hoping it will be a "plug and play" put the 400 crank and 400 or 440 top end in, re jet or re carb and off I go

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