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Recent content by Angelo321

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    High RPMs when going into neutral

    I have twin Mercury 2003 135 HP Optimax engines. The port engine will exhibit momentary high rpms when placed back in neutral after operation. It's done it several times, but it intermittent and doesn't always rev up. I've heard it may be the throttle position sensor (TPS) could be the problem...
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    Lower Unit Leak Test

    Looking for information to pressure/vacuum test for leaks on 2003 Mercury 135HP lower unit. Gear oil appears milky, so I suspect a leak, but I would like to test to determine which seal is leaking.
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    Mercury 135HP Optimax Low Voltage

    A few months back I posted an issue with one of my 135 Opti's have low voltage. After crawling out from the aftermath of Irma, I'm finally getting back to troubleshooting the low voltage issue. Below is the data I've collected so far. Boat has two, 2003 135 HP Opti's, three battery system, one...
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    Low Voltage on 135 HP OPTIs

    The voltage on my twin 135 HP OPTIs do not go above 12 volts while on plane. At trolling speed they come up ~ 12 volts. This a new issue that recently started. I have a 3 battery system, the battery for each motor are new purchased and installed in July 2017. The third battery is about 2 years...
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