2006-2009 Suzuki LT-R450 Service Manual, Page 79Get this manual

2006-2009 Suzuki LT-R450 Service Manual, Page 79

VALVE SEAT SERVICING The valve seats CD for both the intake valve (2) and exhaust valve CID are machined to three different
highly polished or shiny finishThis will provide soft surface for the final seating of the valve which will occur during
the first few seconds of engine operationI CAUTION I The titanium valves are coated with an oxidized membrane treatment to
resist wear but the membrane tend to be removed if lapped after valve seat servicingNOTE: After servicing the valve seats,
be sure to check the valve clearance after the cylinder head has been reinstalled(c::::7 2-5) Clean and assemble the head
and valve componentsFill the intake and exhaust ports with gasoline to check for leaks If any leaks occur, inspect the valve