I am just finishing installing the water pump in my friends 2010 Yamaha R1. It was leaking water out of the weap hole they built in them that leaks from the middle of the oil pan if you can believe that. Its just a two piece oil seal in the water pump that goes bad just behind the impeller. Ill add the Yamaha Part numbers later when I have more time as well as add the rest of the videos of the removal and earlier install
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Post time: Sep-12-2017