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Goldwinger1984 is on the mark.. Very good advice..

Inspect the valve guides for wear prior to lapping the valves by dissassembling the springs, keepers & seals, and just wiggle the valve from side to side while it's in the guide.. The amount of freeplay should be negligable if any at all. If you still wish to hand lap the valves, start with a course grit lapping compound, a few drops of oiland work the face untilthe surface finishesare uniform all around on both the seat and valve face.. This indicates full surface contact.. Then, finish the job with a fine grit compound and continue lapping until the face surfaces are nice and shinny. Be sure to clean all surfaces, including the back sides of the valves and stems before assembly.Use plenty of engine oil during re-assembly. Most of all,,,,,Have Fun!!!:goofygrin:
 
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