Author Topic: Oil leak  (Read 4740 times)

Offline CrestK75RT

  • Curious
  • Posts: 9
Oil leak
« on: October 05, 2025, 04:07:53 PM »
Hello, Great day for a ride here in northern Wisconsin. But when I returned, I found this oil leak on the front lower section of the engine. See photos. Wounder if I can get some advice on maintenance? Thanks in advance.
  • Wausau
  • 1992 K75RT

Offline Laitch

  • Faster than a speeding pullet
  • Administrator
  • ^ Quintessential Motobricker
  • Posts: 11299
Re: Oil leak
« Reply #1 on: October 05, 2025, 05:53:46 PM »
Detach the boot and wire from the oil pressure switch to determine if the switch is not tight or if it's leaking. The classic method for finding oil leaks is to clean the oil from all affected surfaces, dust them with powder, then keep riding. You'll likely be able to trace the source of the leak.

Have you loosened the combo pump cover for any reason?
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline CrestK75RT

  • Curious
  • Posts: 9
Re: Oil leak
« Reply #2 on: October 05, 2025, 10:17:59 PM »
Thanks, I'll do that. But I think I have coolant weeping out of the vent hole also. Maybe need to rebuild the water/oil pump.
  • Wausau
  • 1992 K75RT

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