Author Topic: Yellow crud on my oil pump  (Read 692 times)

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Offline mtr

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Yellow crud on my oil pump
« on: June 30, 2009, 07:26:37 AM »
I pulled off the crankcase cover on my 77 550F last night and saw a yellowish powder-like substance covering the outside of my oil pump. I wiped most of it off before snapping the picture. Any idea what this might be?

77 550F / 80 750F

Offline mcpuffett

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Re: Yellow crud on my oil pump
« Reply #1 on: June 30, 2009, 08:21:12 AM »
oxidization?
Honda CB750 KO 1970,   Honda VTX 1300 2006, Lancaster England.