Re: oil injection mercury motor
What year? I have 91 135's and converted both.<br />1. Reroute oil lines from output of pump back to input of pump.<br />2. plug or remove onboard resivior.<br />3. disconnect purple wire from warning horn module to main wiring harness ignition, this will disable the warning horn for the oil portion, should still work for temp.(may not need to disable if horn does not stay active).<br />4. plug off pressure line from engine to oil external resivior.<br />5. Plug off oil intake to gas line at base of fuel pump.<br />Don't disconnect the oil warning system unless you have to, I had too on mine because the horns kept going off. You still want to keep the temperature warning system working and thats why you only disconnect that purple wire from the warning horn module because it has to do with the oil business. You can get a dummy pump to replace the oil pump with. <br />Disclaimer: most of the time I don't know what I'm talking about.
