Vintage Dirt Bike Q & A

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 Post subject: MR/ CR gears?
PostPosted: Mon Apr 11, 2005 12:59 am 
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Joined: Mon Apr 11, 2005 12:53 am
Posts: 1
Location: Canyon Lake, CA
Hoping to find out if someone knows whether MR250 trany gears can be used in a 73 CR250? either some or all of them. thnx for any help.

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 Post subject:
PostPosted: Mon Apr 11, 2005 6:38 am 
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Joined: Fri May 07, 2004 7:42 am
Posts: 52
Location: Wellsburg, WV
If I'm not mistaken, those who raced a CR in the dessert, would change to the MR gear box. It would give them a greater range of gears, than the standard CR gear box. As to what years would work in your 73 CR 250M, I'll defer to those who are more knowledgeable than me...

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74 CR250M, bought new in 74, still stock, except for the new 36mm Carb, and proform exhaust.


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 Post subject: MR250
PostPosted: Fri Apr 15, 2005 9:53 pm 
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Joined: Fri Apr 15, 2005 9:49 pm
Posts: 86
The third gear from an MR250 will fit in a CR250 tranny only. And only the female dawg third will work all others will not mesh. The second gear from an MT250 will fit the CR250 again only the female dawg second gear.


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