Yamaha XV250 (1994) [134/291] Inspection and repair

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INSPECTION AND REPAIR ENG NOTE _________________________________ All valve springs must be installed with the larger pitch T upward as shown Be sure the Blue spring is for intake and Red for exhaust 4 Check Valve sealing Leakage at valve seat Reface relap or replace valve relap Refer to VALVE SEAT Valve seat checking steps Pour a clean solvent into the intake and exhaust ports Check the valve sealing there should be no leakage at the valve seat 2 Relapping steps Reassemble head parts Repeat lapping steps using fine lapping compound Clean all parts thoroughly Reassemble and check for leakage again using solvent Repeat steps as often as necessary to effect a satisfactory seal CAM SHAFT 1 Inspect Camshaft bushing Cylinder head Wear Damage Replace 4 24