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On page 2-25 of the Factory Yamaha manual (2007 manual) shows each rod bearing feed oil from an adjacent main bearing.
Each main bearing is feed oil thru the block eventually connected to a common main oil gallery.
Oil is pumped to the top of the engine from one end of that gallery as well.
Both rods not being adjacent indicate it probably wasn't a blockage or more bearings would be damaged or at least adjacent to each other.. A very close inspection would definitly be due...
Each main bearing is feed oil thru the block eventually connected to a common main oil gallery.
Oil is pumped to the top of the engine from one end of that gallery as well.
Both rods not being adjacent indicate it probably wasn't a blockage or more bearings would be damaged or at least adjacent to each other.. A very close inspection would definitly be due...