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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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    Water flow question

    The copper water tube fits into a rubber gromet at the base of the powerhead. It is hard to reinsert if it is pulled out, so do not do that unless absolutely necessary. You may need to pull the powerhead to reinsert it. My suggestion is to drop the gearcase. Put a garden hose on the water...
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    So, my 2025 Bayliner VR5 200 hp 4.5L mercruiser STILL barely pulls me up

    You might repost this in the MerCruiser forum. My wild guess would be failing ign module or coil or some sort of cylinder damage.
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    Ujoints clunking?

    Years ago, I needed to replace the ujoints on my Alpha 1. I took one of them to an automotive store and he matched it up to an auto ujoint in 30 sec. The difference was that the Mercruiser ujoint ($50 ea) had a larger inner race and smaller needle bearings, than the auto Ujoint ($12). Both...
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    helm wiring, should be simple, i'm not too bright.

    26 volts implies that you have two 12VDC batteries connected in series. A fishing boat might do that for a trolling motor. If you do not have a trolling motor, you will need to trace the wiring to see how that happened. In the meantime, disconnect one of your batteries and see what voltage...
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    Lower gear oil drain plug seal for Johnson outboard

    Does anyone realize that a hand impact driver uses my hand and a hammer? I suppose I could damage the gearcase threads, if I got a BFH and wailed on it. That is what it would take. I, for one, do not want the gearcase plugs to work loose over the season. That will ruin the gearcase for sure.....
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    Sprint 270 ignition wiring

    Maxrules has some of them. Most Merc ignitions have been the same since the early 80s. See if you can match the switchbox wiring from a diagram to your motor.
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    Lower gear oil drain plug seal for Johnson outboard

    Really? I have been using a hand impact tool for 40 years on my gearcase screws. Tighten the screw, and then tap the impact driver to tighten it a bit more, maybe 1/4 turn. My gearcase plug washers last exactly 1 season, not 20 years.
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