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jase12 posted a topic in 250/350/450/505 SX-F & XC-FHeres a strange problem for the community, I have a bike thats failing a compression test but passes a leak down with flying colors... 2012 KTM 250 SX-F Valves spot on, clearances spot on New cam chain Dirt Tricks cam chain tensioner HAS fuel HAS spark 4% leakdown on the leakdown test FAILS compression test horribly Thoughts?? I am flat out stumped...