Yes, it is a 90 hp Mercury OT872802. What is the rings function and how do I go about fixing it? So far I've been told the part it connects to has probably
Seem to have raw sea water mixing with fresh water in the engine,suspect either O rings or cooling core in heat exchanger,have removed end plate to expose
According to this yellow is key on hot allways double check and disconnect the battery before touching
It is called the "Click Arm" on the drawing 24166-ZY6-000
What part number are you talking about?