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oil pump zr750k

  1. Small hole bottom of Oil Pump

    Z750 Z1000
    What we have here is a small very slow leak that is coming out of a small hole on the bottom of my oil pump on my 06 ZR750K or Z750S I believe same motors in each. Anyway anyone know about this hole and what its for? Should I plug it? replace the pump? rebuild it? Only leaks when it runs and it...