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    Engine water flow issue

    I had barnacles clog the water inlet in the outdrive on several occasions. You need to pull the water pump base and scrape 'em out. You should be able to look in the gratings and see if it is clear. On my '88 4.3LX, there was a pair of plastic balls and a spring in the thermostat housing...
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    1980'ish black max 150 losing all power after running for 30 minutes

    If the primer bulb collapses, it will starve the engine of fuel, which can damage the engine. Put a hair dryer's hot air on the switchboxes and run her on a flusher. See if it dies. If not, the switchboxes are good. Just so you know, that motor will continue to run even if overheat is...
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    Mercury 80 won't crank with plugs installed

    Gee, my guess was ruptured diaphragm in fuel pump. That allows gasoline to enter crankcase in 2 cycle engines. Glad it was resolved.
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    Testing stator

    The other resistance test is from each stator wire to ground. Resistance should be infinite.
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    1988 Alpha one Gen one lower unit

    Gee, is it full of gear oil? Prop spins in neutral? Sounds like a rusty bearing.
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    Testing stator

    I am assuming the motor is a 60* V4. Battery charging coil is yellow and yellow/grey. The stator battery charging coils should have resistance of .185 ohms. You can get to these wires at the plug that goes to the water-cooled voltage regulator. Power coil and charge coil connect to powerpack...
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    Testing stator

    The stator battery charging coils should have resistance of .185 ohms. the power coils should have 45-65 ohms resistance. All this is in the factory service manual.
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    1999 Johnson 115 starts then dies

    That motor should have the quickstart system. When it is cold started, the spark is advanced and the motor should run at about 1100 RPM until it warms up. When the motor is warm restarted, the quickstart system kicks in for 1 second or two. Have you tried advancing the throttle a bit when...
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    1990 force 70hp tilt trim motor

    Gee, Crowleymarine does not list a 1990 Force 70HP engine. They are usually pretty accurate.
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    1987 mercury 45hp classic 50 shut off in the middle of running

    There is no limp mode on those motors, from the factory. Overheat also does not cause them to turn off. Nordin could very well be correct about warm fail of the switchbox. However, I would also trace the black/yellow wire, which kills spark, from the switchbox to the wiring harness plug and...
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    Just keeps going right

    Don't let go of the wheel. Seriously, boats with RH props tend to pull right. The trim tab can be adjusted to compensate, but usually not at all speeds. I set my motors where the steering feels neutral, at the speed I usually use (med cruise). There are No Feedback steering systems that...
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    Replacing bow seat foam

    It will only clean it and kill mold and mildew. However, I have never had to replace foam when I made new cushions. Of course, I never let the sun get to it either.
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    So, my 2025 Bayliner VR5 200 hp 4.5L mercruiser STILL barely pulls me up

    Gee, it is a 2025. Even Bayliners last longer than that. I suspect a MerCruiser electronics issue. Intermittent ign coil, bad connection to the ECU, something.
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    Wiring positive cable from Amps to battery or common on Switch?

    The OP said the amps were fused. That removes the fire hazard, if they short circuit.
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    Replacing bow seat foam

    Gee, stick the old foam into a bucket of 50% bleach. It might be fine to reuse.
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    So, my 2025 Bayliner VR5 200 hp 4.5L mercruiser STILL barely pulls me up

    I think you have a MerCruiser issue. If you have a warrantee, I would think a local MerCruiser dealer would make good. Of course I try to think logically.
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    Wiring positive cable from Amps to battery or common on Switch?

    Gee, Consider the following: Outboards from 20+ years ago have hefty charging ability. my '93 Merc V6 charges 40A. My '98 Johnny V6 charges 35A. Newer motors often charge more than that, especially DFI types. Fusing the amps properly will stop 'em from smoking. There is no need for a...
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    Lower gear oil drain plug seal for Johnson outboard

    Gee, that is why I said "Hand Impact Driver", vs "Air Impact Driver". Does anyone not know what a BFH is? I will save time. it is a big hammer.
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    Wiring positive cable from Amps to battery or common on Switch?

    They put the amplifier wires on the deep cycle battery so that it would not discharge the starting battery. You need to set the battery switch to the starting battery to avoid discharging the starting battery to the one powering your amplifiers. Once the boat is running you can set the...
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    So, my 2025 Bayliner VR5 200 hp 4.5L mercruiser STILL barely pulls me up

    Any close MerCruiser dealer should be able to work on it, no?
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