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its a 05 900 rmk im in the process of putting compfusions mounts in and 06 pistons well when i was changing the pistons i noticed a few spots on the rods where they were darker/ purplish color. and it was at the dealer last summer getting the updates done and they found that the pto crank seal was pushed in from a blown belt, so they opened up the engine and found that one of the crank bearings looked like it ran lean on oil so they sent it off the slp to have them re bearing the crank. do you guys/gals think this is from before they redid the crank or is this something i need to worry about.