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| Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc. |
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#11
06-30-2019, 01:19 AM
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I'm guessing they cut it to allow it to open a little further?
I took mine out and ground it to suit the port a couple years ago. My symptoms were a flat spot down the bottom, like the bike was incredibly lean, but then recovered as the power valve opened. I only really noticed it as I picked up an old exc200, and the bottom end blew me away, so I knew something was wrong. The KTM was set to open mega early, so I knew I needed to get the gasgas to open earlier, and damn did it make a difference. Bare in mind I'm running 1.5mm base gasket to align the ports, so anything to recover the bottom end is a good thing!
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2006 EC300 Enduro - Ignitech CDI - 38/NECW#2/165 FMF gnarly, FMF shorty, .50 front 5.7 rear 2016 RM-Z450 
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