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1999 XR250 Burning Oil

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As topic my friends XR is buring oil, not a lot maybe 100ml for every 500 miles the engine has done nearly 30,000KM but we don't know if it has had any engine work done in the past. Question is what is best course of action ? a rebore or do you think it's the valves ?, would consider the larger 277cc kit thingy if required. Bike runs fine just smokes a little :moon: so nothing desperate.

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I would say its probably about time for a new set of rings at the least. While you got it apart doing a valve job would not hurt. Best way to tell if its the valves or the rings is a compression test and a leak down test if you have the equipment available.

Edited by r00t4rd3d

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