2003 Kawasaki KLF250 Service Manual., Page 83Get this manual
4-24 ENGINE TOP END Valves, Guides, Seats, Springs, Oil Seals
Valve Installation
If new valve is to be used, check the valve-to-guide clearanceIf there is too little clearance, ream the valve guideIf there is too much clearance, install new valve guideCheck the valve seatingAfter proper valve seating has been confirmed, replace the valve stem oil seal [A]Smear the valve stem end with thin coat of molybdenum disulfide engine assembly grease, and push the valve [B] into the guidePut the spring seat [C] and the inner and outer springs [D] in placePlace the springs so that the closed coil end [E] of each spring faces downSet the spring retainer [F] on the springsUse the valve spring compressor to press down the valve spring retainerInstall the split keepers [G], and slowly remove the spring compressorBe sure the keepers stay in place, holding the retainer downRepeat the procedure for the other valveInstall the removed parts to the cylinder headInstall the cylinder head (see Cylinder Head Installation)Adjust the valve clearance (see Valve Clearance Inspection)