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Running up my top end rebuild

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Hey guys. I'll be rebuilding the top end of my 02cr 250 one night this week. The cyclinder has been resleeved with the exhaust bridge releived. I'm putting a forged wossner piston in , and goin to be drilling the cooling holes in the skirt. What is the best way to run it in, for optimum power. Thanks.

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Meant to say running in not up. Is there a quick way of doing this as I'll be taking it to a track and don't really wanna go steady round there running it in. Id rather run it in before I go.

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 with the exhaust bridge releived. 

 

Anyway you can post a pic of that?  My 04 CR125 has a crack at the top of the bridge.

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That says for 4 strokes. Does the same apply to 2 strokes. So following that link. I should let my bike warm up, say while I get my helmet and gloves on ect then just ride it like I normally would. How long do they need to be ran in for, before I can actually take it round a track hard racing.

As for the pics I'm hopefully picking my barrel up either tomorrow or Saturday morning and I'll get some pics of it. My bridge cracked and I ended up having it resleeved and ask the people who are doin the work to relive the bridge. So I'll be interested to see what it looks like after aswell

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