I have a GC160 on a pressure washer that runs rich and fouls the plug within minutes. The carb looks fine, but I have seen some posts in regards to an exhaust valve lifter issue. Could this be my problem? I hate to just throw parts at it. Any help would be greatly appreciated.

I found that the cam is worn severly with a few chips? Where can you find a replacement cam?

any small engine shop can order it..

Thanks bugman, I also found a good site for parts. www.msengines.com