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Old 11-03-2010, 07:23 PM   #7
Lokey
redneck
 
Joined: Sep 2009
Location: Susanville, CA
Oddometer: 252
I just did that exact same job on my '78 R100S. It looked as though the PO had goobered silicone on the seals to try (unsuccessfully) to stop the leaks. I would recommend taking the heads apart to check the valve guide clearance, also it will allow you to do a more through job of cleaning them.

I got my parts from Hucky.
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