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motor swap

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Hello

I have a 2003 525 sx with bad crank rod cylender. I was woundering if a 2006 525 xc motor will bolt in my fram? A friend has a motor that I can get for 1000 and have e start and head light any thoughts??

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It´s a straight swap. No problemo. Except one : This is a forum for newer models so you´re better off asking questions regarding RFS models in RFS forum...:thumbsup:

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There is one problem, the swingarm pivot bolt is 15mm on your 03, the 06 has a 17mm bolt. Not a huge problem, as you can have a spacer made.

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Your carb will work, you will have to use the exhaust flange from your old engine to use your old exhaust.

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