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09 vs 08 valve adjustment 450 exc

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There's an explanation on KTMTalk on how to check/adjust 2008 450 exc valves, can i assume it's the same for an 09?

Please excuse my absolute ignorance while I try to learn about this, I thought that the xc4 engines had done away with the shims in favor of tappets for adjustment? Or am I way off base?

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yeah they are the same process and the spec is on a tag under your tank at how many mm the intake and exhaust should open

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Up until 2007 the RFS engines had adjusters to adjust the valve lash. In 2008 the XC4 motor came with valve shims and the valve train is unchanged from 2008 to 2010 on the XC4's so all the procedures and specs are the same for those years. The good news is they are very easy to re-shim and the track record so far by other owners appears to be very good for valves staying in spec after the initial wear in.

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