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    Oil ratio for Mercury Optimax 150hp

    I want to check if my oil pump is working,but need to run the motor. Is there a recommended oil to gas ratio that I can use to premix with the gas. Also if for any reason I wanted to bypass the oil injection permanently,first is this recommended,second what would need to be disconnected in order...
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    1998 Mercury Optimax 150hp oil pump

    Is there any way to test if the oil pump is functioning? According to service manual,it is electrical. Also,where is the sensor that trips horn, indicating it is not functioning, located?
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    1998 Mercury Optimax no oil flow to pump

    I have a 1998 Mercury Optimax 150hp that is sounding a continuous warning horn. I have the service manual and looked up what it might be and from what I can determine it looks like the problem is no oil flow to oil pump. I am new to outboard motors,and if anyone can give me insight of where to...
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